diff --git a/00-importance-of-message.html b/00-importance-of-message.html
index 70838638..99f40d37 100644
--- a/00-importance-of-message.html
+++ b/00-importance-of-message.html
@@ -254,7 +254,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>The Importance of Message</h1>
-        <p>Last updated on 2022-07-28 |
+        <p>Last updated on 2023-12-18 |
         
         <a href="https://github.com/jbkieffer/intro-data-viz/edit/main/episodes/00-importance-of-message.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -379,7 +379,7 @@ <h3 id="the-role-of-tables">The role of tables<a class="anchor" aria-label="anch
 a chart. A table must be read to convey its information. Reading a data
 table makes it difficult to understand any patterns that might be
 present in the data. Consider this data table:</p>
-<table class="table"><thead><tr class="header"><th align="left">Average Monthly Temperature</th>
+<table class="table"><thead><tr class="header"><th align="left">Average Monthly Temperature (°F)</th>
 <th align="center">Daily Walks per Dog</th>
 </tr></thead><tbody><tr class="odd"><td align="left">30</td>
 <td align="center">0</td>
@@ -478,7 +478,7 @@ <h3 class="callout-title">Challenge: Identify a chart message<a class="anchor" a
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Answer</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>The correct answer is 1. This sentence describes an interaction
 between seasonal temperature and number of daily walks. These are the
@@ -527,7 +527,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
 information-processing (W. J. Berg &amp; P. Scott, Trans.). de
 Gruyter.<a href="#fnref1" class="footnote-back">↩︎</a></p></li>
 <li id="fn2"><p>Wickham, H. 2014. “Tidy Data.” Journal of Statistical
-Software 59 (10). 10.18637/jss.v059.i10 <a href="http://dx.doi.org/10.18637/jss.v059.i10" class="external-link">http://dx.doi.org/10.18637/jss.v059.i10</a><a href="#fnref2" class="footnote-back">↩︎</a></p></li>
+Software 59 (10). 10.18637/jss.v059.i10 <a href="https://doi.org/10.18637/jss.v059.i10" class="external-link">https://doi.org/10.18637/jss.v059.i10</a><a href="#fnref2" class="footnote-back">↩︎</a></p></li>
 <li id="fn3"><p>Bertin, J. (1981). Graphics and graphic
 information-processing (W. J. Berg &amp; P. Scott, Trans.). de
 Gruyter.<a href="#fnref3" class="footnote-back">↩︎</a></p></li>
@@ -595,7 +595,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "url": "https://jbkieffer.github.io/intro-data-viz/00-importance-of-message.html",
   "identifier": "https://jbkieffer.github.io/intro-data-viz/00-importance-of-message.html",
   "dateCreated": "2022-06-14",
-  "dateModified": "2022-07-28",
+  "dateModified": "2023-12-18",
   "datePublished": "2023-12-18"
 }
 
diff --git a/02-Identify-and-Interpret-the-message.html b/02-Identify-and-Interpret-the-message.html
index fa8f4477..481bca73 100644
--- a/02-Identify-and-Interpret-the-message.html
+++ b/02-Identify-and-Interpret-the-message.html
@@ -375,7 +375,7 @@ <h3 class="callout-title">Challenge 1<a class="anchor" aria-label="anchor" href=
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Output</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p><code>b) everyone!</code></p>
 </div>
@@ -407,7 +407,7 @@ <h3 class="callout-title">Challenge 2: Pair the data type names with the
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">Show me the solution</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li>-&gt; b</li>
 <li>-&gt; a</li>
diff --git a/aio.html b/aio.html
index 8165b03a..82e12eea 100644
--- a/aio.html
+++ b/aio.html
@@ -279,7 +279,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
         
 <section id="aio-00-importance-of-message"><p>Content from <a href="00-importance-of-message.html">The Importance of Message</a></p>
 <hr>
-<p>Last updated on 2022-07-28 |
+<p>Last updated on 2023-12-18 |
         
         <a href="https://github.com/jbkieffer/intro-data-viz/edit/main/episodes/00-importance-of-message.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <div class="text-end">
@@ -419,7 +419,7 @@ <h3 id="the-role-of-tables">The role of tables<a class="anchor" aria-label="anch
 present in the data. Consider this data table:</p>
 <table class="table">
 <thead><tr class="header">
-<th align="left">Average Monthly Temperature</th>
+<th align="left">Average Monthly Temperature (°F)</th>
 <th align="center">Daily Walks per Dog</th>
 </tr></thead>
 <tbody>
@@ -550,7 +550,7 @@ <h3 class="callout-title">Challenge: Identify a chart message<a class="anchor" a
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Answer</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>The correct answer is 1. This sentence describes an interaction
 between seasonal temperature and number of daily walks. These are the
@@ -604,7 +604,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
 information-processing (W. J. Berg &amp; P. Scott, Trans.). de
 Gruyter.<a href="#fnref1" class="footnote-back">↩︎</a></p></li>
 <li id="fn2"><p>Wickham, H. 2014. “Tidy Data.” Journal of Statistical
-Software 59 (10). 10.18637/jss.v059.i10 <a href="http://dx.doi.org/10.18637/jss.v059.i10" class="external-link">http://dx.doi.org/10.18637/jss.v059.i10</a><a href="#fnref2" class="footnote-back">↩︎</a></p></li>
+Software 59 (10). 10.18637/jss.v059.i10 <a href="https://doi.org/10.18637/jss.v059.i10" class="external-link">https://doi.org/10.18637/jss.v059.i10</a><a href="#fnref2" class="footnote-back">↩︎</a></p></li>
 <li id="fn3"><p>Bertin, J. (1981). Graphics and graphic
 information-processing (W. J. Berg &amp; P. Scott, Trans.). de
 Gruyter.<a href="#fnref3" class="footnote-back">↩︎</a></p></li>
@@ -1130,7 +1130,7 @@ <h3 class="callout-title">Challenge 1<a class="anchor" aria-label="anchor" href=
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Output</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p><code>b) everyone!</code></p>
 </div>
@@ -1174,7 +1174,7 @@ <h3 class="callout-title">Challenge 2: Pair the data type names with the
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">Show me the solution</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li>-&gt; b</li>
diff --git a/index.html b/index.html
index 4e1b2c4d..ed8e0cf6 100644
--- a/index.html
+++ b/index.html
@@ -292,7 +292,7 @@ <h3 class="callout-title">Details<a class="anchor" aria-label="anchor" href="#de
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Windows</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>Use PuTTY</p>
 </div>
@@ -304,7 +304,7 @@ <h4 class="accordion-header" id="headingSolution1">Windows</h4>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">MacOS</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <p>Use Terminal.app</p>
 </div>
@@ -316,7 +316,7 @@ <h4 class="accordion-header" id="headingSolution2">MacOS</h4>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3">Linux</h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <p>Use Terminal</p>
 </div>
diff --git a/instructor/00-importance-of-message.html b/instructor/00-importance-of-message.html
index b693d613..b00e0e7e 100644
--- a/instructor/00-importance-of-message.html
+++ b/instructor/00-importance-of-message.html
@@ -253,7 +253,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>The Importance of Message</h1>
-        <p>Last updated on 2022-07-28 |
+        <p>Last updated on 2023-12-18 |
         
         <a href="https://github.com/jbkieffer/intro-data-viz/edit/main/episodes/00-importance-of-message.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -378,7 +378,7 @@ <h3 class="callout-title">Resources for learning about cleaning
   <h3 class="accordion-header" id="headingInstructor1">
 <div class="note-square"><i aria-hidden="true" class="callout-icon" data-feather="edit-2"></i></div>Instructor Note</h3>
 </button>
-<div id="collapseInstructor1" class="accordion-collapse collapse" aria-labelledby="headingInstructor1" data-bs-parent="#accordionInstructor1">
+<div id="collapseInstructor1" class="accordion-collapse collapse" data-bs-parent="#accordionInstructor1" aria-labelledby="headingInstructor1">
 <div class="accordion-body">
 <p>Learners who have less experience with tabular data may need more
 specific information than this section provides. If you want to include
@@ -396,7 +396,7 @@ <h3 id="the-role-of-tables">The role of tables<a class="anchor" aria-label="anch
 a chart. A table must be read to convey its information. Reading a data
 table makes it difficult to understand any patterns that might be
 present in the data. Consider this data table:</p>
-<table class="table"><thead><tr class="header"><th align="left">Average Monthly Temperature</th>
+<table class="table"><thead><tr class="header"><th align="left">Average Monthly Temperature (°F)</th>
 <th align="center">Daily Walks per Dog</th>
 </tr></thead><tbody><tr class="odd"><td align="left">30</td>
 <td align="center">0</td>
@@ -495,7 +495,7 @@ <h3 class="callout-title">Challenge: Identify a chart message<a class="anchor" a
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Answer</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>The correct answer is 1. This sentence describes an interaction
 between seasonal temperature and number of daily walks. These are the
@@ -544,7 +544,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
 information-processing (W. J. Berg &amp; P. Scott, Trans.). de
 Gruyter.<a href="#fnref1" class="footnote-back">↩︎</a></p></li>
 <li id="fn2"><p>Wickham, H. 2014. “Tidy Data.” Journal of Statistical
-Software 59 (10). 10.18637/jss.v059.i10 <a href="http://dx.doi.org/10.18637/jss.v059.i10" class="external-link">http://dx.doi.org/10.18637/jss.v059.i10</a><a href="#fnref2" class="footnote-back">↩︎</a></p></li>
+Software 59 (10). 10.18637/jss.v059.i10 <a href="https://doi.org/10.18637/jss.v059.i10" class="external-link">https://doi.org/10.18637/jss.v059.i10</a><a href="#fnref2" class="footnote-back">↩︎</a></p></li>
 <li id="fn3"><p>Bertin, J. (1981). Graphics and graphic
 information-processing (W. J. Berg &amp; P. Scott, Trans.). de
 Gruyter.<a href="#fnref3" class="footnote-back">↩︎</a></p></li>
@@ -612,7 +612,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "url": "https://jbkieffer.github.io/intro-data-viz/instructor/00-importance-of-message.html",
   "identifier": "https://jbkieffer.github.io/intro-data-viz/instructor/00-importance-of-message.html",
   "dateCreated": "2022-06-14",
-  "dateModified": "2022-07-28",
+  "dateModified": "2023-12-18",
   "datePublished": "2023-12-18"
 }
 
diff --git a/instructor/02-Identify-and-Interpret-the-message.html b/instructor/02-Identify-and-Interpret-the-message.html
index a74d4d64..89228c17 100644
--- a/instructor/02-Identify-and-Interpret-the-message.html
+++ b/instructor/02-Identify-and-Interpret-the-message.html
@@ -376,7 +376,7 @@ <h3 class="callout-title">Challenge 1<a class="anchor" aria-label="anchor" href=
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Output</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p><code>b) everyone!</code></p>
 </div>
@@ -408,7 +408,7 @@ <h3 class="callout-title">Challenge 2: Pair the data type names with the
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">Show me the solution</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li>-&gt; b</li>
 <li>-&gt; a</li>
diff --git a/instructor/03-communicating-the-message.html b/instructor/03-communicating-the-message.html
index d5a5d29a..44872bcb 100644
--- a/instructor/03-communicating-the-message.html
+++ b/instructor/03-communicating-the-message.html
@@ -314,7 +314,7 @@ <h3 class="card-title">Objectives</h3>
   <h3 class="accordion-header" id="headingInstructor1">
 <div class="note-square"><i aria-hidden="true" class="callout-icon" data-feather="edit-2"></i></div>Instructor Note</h3>
 </button>
-<div id="collapseInstructor1" class="accordion-collapse collapse" aria-labelledby="headingInstructor1" data-bs-parent="#accordionInstructor1">
+<div id="collapseInstructor1" class="accordion-collapse collapse" data-bs-parent="#accordionInstructor1" aria-labelledby="headingInstructor1">
 <div class="accordion-body">
 <p>Other tools can have many advantages as well. Certain software which
 use a command line interface may have a steeper learning curve, but has
diff --git a/instructor/aio.html b/instructor/aio.html
index 7c6fa859..8da4ce42 100644
--- a/instructor/aio.html
+++ b/instructor/aio.html
@@ -279,7 +279,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
         
 <section id="aio-00-importance-of-message"><p>Content from <a href="00-importance-of-message.html">The Importance of Message</a></p>
 <hr>
-<p>Last updated on 2022-07-28 |
+<p>Last updated on 2023-12-18 |
         
         <a href="https://github.com/jbkieffer/intro-data-viz/edit/main/episodes/00-importance-of-message.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <p>Estimated time: <i aria-hidden="true" data-feather="clock"></i> 20 minutes</p>
@@ -415,7 +415,7 @@ <h3 class="callout-title">Resources for learning about cleaning
   <h3 class="accordion-header" id="headingInstructor1">
 <div class="note-square"><i aria-hidden="true" class="callout-icon" data-feather="edit-2"></i></div>Instructor Note</h3>
 </button>
-<div id="collapseInstructor1" class="accordion-collapse collapse" aria-labelledby="headingInstructor1" data-bs-parent="#accordionInstructor1">
+<div id="collapseInstructor1" class="accordion-collapse collapse" data-bs-parent="#accordionInstructor1" aria-labelledby="headingInstructor1">
 <div class="accordion-body">
 <p>Learners who have less experience with tabular data may need more
 specific information than this section provides. If you want to include
@@ -436,7 +436,7 @@ <h3 id="the-role-of-tables">The role of tables<a class="anchor" aria-label="anch
 present in the data. Consider this data table:</p>
 <table class="table">
 <thead><tr class="header">
-<th align="left">Average Monthly Temperature</th>
+<th align="left">Average Monthly Temperature (°F)</th>
 <th align="center">Daily Walks per Dog</th>
 </tr></thead>
 <tbody>
@@ -567,7 +567,7 @@ <h3 class="callout-title">Challenge: Identify a chart message<a class="anchor" a
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Answer</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>The correct answer is 1. This sentence describes an interaction
 between seasonal temperature and number of daily walks. These are the
@@ -621,7 +621,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
 information-processing (W. J. Berg &amp; P. Scott, Trans.). de
 Gruyter.<a href="#fnref1" class="footnote-back">↩︎</a></p></li>
 <li id="fn2"><p>Wickham, H. 2014. “Tidy Data.” Journal of Statistical
-Software 59 (10). 10.18637/jss.v059.i10 <a href="http://dx.doi.org/10.18637/jss.v059.i10" class="external-link">http://dx.doi.org/10.18637/jss.v059.i10</a><a href="#fnref2" class="footnote-back">↩︎</a></p></li>
+Software 59 (10). 10.18637/jss.v059.i10 <a href="https://doi.org/10.18637/jss.v059.i10" class="external-link">https://doi.org/10.18637/jss.v059.i10</a><a href="#fnref2" class="footnote-back">↩︎</a></p></li>
 <li id="fn3"><p>Bertin, J. (1981). Graphics and graphic
 information-processing (W. J. Berg &amp; P. Scott, Trans.). de
 Gruyter.<a href="#fnref3" class="footnote-back">↩︎</a></p></li>
@@ -1248,7 +1248,7 @@ <h3 class="callout-title">Challenge 1<a class="anchor" aria-label="anchor" href=
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Output</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p><code>b) everyone!</code></p>
 </div>
@@ -1292,7 +1292,7 @@ <h3 class="callout-title">Challenge 2: Pair the data type names with the
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">Show me the solution</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li>-&gt; b</li>
@@ -1479,7 +1479,7 @@ <h3 class="card-title">Objectives</h3>
   <h3 class="accordion-header" id="headingInstructor1">
 <div class="note-square"><i aria-hidden="true" class="callout-icon" data-feather="edit-2"></i></div>Instructor Note</h3>
 </button>
-<div id="collapseInstructor1" class="accordion-collapse collapse" aria-labelledby="headingInstructor1" data-bs-parent="#accordionInstructor1">
+<div id="collapseInstructor1" class="accordion-collapse collapse" data-bs-parent="#accordionInstructor1" aria-labelledby="headingInstructor1">
 <div class="accordion-body">
 <p>Other tools can have many advantages as well. Certain software which
 use a command line interface may have a steeper learning curve, but has
diff --git a/instructor/index.html b/instructor/index.html
index 0699a19a..23650db1 100644
--- a/instructor/index.html
+++ b/instructor/index.html
@@ -345,7 +345,7 @@ <h3 class="callout-title">Details<a class="anchor" aria-label="anchor" href="#de
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Windows</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>Use PuTTY</p>
 </div>
@@ -357,7 +357,7 @@ <h4 class="accordion-header" id="headingSolution1">Windows</h4>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">MacOS</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <p>Use Terminal.app</p>
 </div>
@@ -369,7 +369,7 @@ <h4 class="accordion-header" id="headingSolution2">MacOS</h4>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3">Linux</h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <p>Use Terminal</p>
 </div>
diff --git a/md5sum.txt b/md5sum.txt
index 432a5e6b..4bfb4899 100644
--- a/md5sum.txt
+++ b/md5sum.txt
@@ -4,7 +4,7 @@
 "config.yaml" "39c6de2a749948a996f6ad654306bd31" "site/built/config.yaml" "2022-06-14"
 "index.md" "185e7b44f74deadf7364770c88cfd9b2" "site/built/index.md" "2022-07-15"
 "links.md" "8184cf4149eafbf03ce8da8ff0778c14" "site/built/links.md" "2022-06-14"
-"episodes/00-importance-of-message.md" "b48e5af5a9f084bfbf8231e71fa4962e" "site/built/00-importance-of-message.md" "2022-07-28"
+"episodes/00-importance-of-message.md" "df99d2b6451682da727d6b66b98f04ea" "site/built/00-importance-of-message.md" "2023-12-18"
 "episodes/01-graphical-elements.md" "23acc8708ac4c944ecdda89e0ddccdc8" "site/built/01-graphical-elements.md" "2022-07-28"
 "episodes/02-Identify-and-Interpret-the-message.md" "add7623f7a9aa6a010e8c5c650b7f522" "site/built/02-Identify-and-Interpret-the-message.md" "2023-12-18"
 "episodes/03-communicating-the-message.md" "64f4ff8e87bf383278628edf9f093d41" "site/built/03-communicating-the-message.md" "2023-12-18"
diff --git a/pkgdown.yml b/pkgdown.yml
index cb7606d1..93171268 100644
--- a/pkgdown.yml
+++ b/pkgdown.yml
@@ -2,5 +2,5 @@ pandoc: 2.19.2
 pkgdown: 2.0.7
 pkgdown_sha: ~
 articles: {}
-last_built: 2023-12-18T14:07Z
+last_built: 2023-12-18T14:26Z