diff --git a/src/climate_science/climate2_snowball_earth.jl b/src/climate_science/climate2_snowball_earth.jl
index 47ac7abe..eebf191f 100644
--- a/src/climate_science/climate2_snowball_earth.jl
+++ b/src/climate_science/climate2_snowball_earth.jl
@@ -722,8 +722,8 @@ In **Homework 10** (2020 class), you will build a simple two-dimensional version
# ╔═╡ e3e0b838-19a9-4f9b-9026-0b546d3c416b
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diff --git a/src/climate_science/our_first_climate_model.jl b/src/climate_science/our_first_climate_model.jl
index 3c28b4b2..e525c47e 100644
--- a/src/climate_science/our_first_climate_model.jl
+++ b/src/climate_science/our_first_climate_model.jl
@@ -498,8 +498,8 @@ md"Although the greenhouse effect due to human-caused CO₂ emissions is the dom
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diff --git a/src/climate_science/resistors_and_stencils.jl b/src/climate_science/resistors_and_stencils.jl
index 67efdd2c..bfbf00c2 100644
--- a/src/climate_science/resistors_and_stencils.jl
+++ b/src/climate_science/resistors_and_stencils.jl
@@ -50,8 +50,8 @@ which some of you might want to check out:
# ╔═╡ a4d5fe96-5fed-4c26-b3ad-7637246cbb87
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@@ -66,8 +66,8 @@ Don't miss the fun video effects!
# ╔═╡ c9c62724-4c0e-4858-9419-828289ec1f45
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@@ -225,8 +225,8 @@ md"""
html"""
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diff --git a/src/homework/hw10.jl b/src/homework/hw10.jl
index 63910991..9efa21bb 100644
--- a/src/homework/hw10.jl
+++ b/src/homework/hw10.jl
@@ -502,8 +502,8 @@ In lecture 21 (see below), we discovered that increases in the brightness of the
# ╔═╡ a0ef04b0-25e9-11eb-1110-cde93601f712
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diff --git a/src/images_abstractions/seamcarving.jl b/src/images_abstractions/seamcarving.jl
index beef51b8..3a7cd8e9 100644
--- a/src/images_abstractions/seamcarving.jl
+++ b/src/images_abstractions/seamcarving.jl
@@ -56,8 +56,8 @@ Here is Grant Sanderson (3Blue1Brown) explaining seam carving using this noteboo
# ╔═╡ 1e132972-80fc-11eb-387a-9b251ee572f8
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diff --git a/src/images_abstractions/transformations_and_autodiff.jl b/src/images_abstractions/transformations_and_autodiff.jl
index 18eeac51..8aee26b2 100644
--- a/src/images_abstractions/transformations_and_autodiff.jl
+++ b/src/images_abstractions/transformations_and_autodiff.jl
@@ -469,8 +469,8 @@ md"""
# ╔═╡ b9dba026-76b3-11eb-1bfb-ffe9c43ced5d
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diff --git a/src/images_abstractions/transforming_images.jl b/src/images_abstractions/transforming_images.jl
index e4ee365d..f753d1e1 100644
--- a/src/images_abstractions/transforming_images.jl
+++ b/src/images_abstractions/transforming_images.jl
@@ -278,8 +278,8 @@ watch the whole video.)
# ╔═╡ 5864294a-74a5-11eb-23ef-f38a582f2c2d
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@@ -353,8 +353,8 @@ convolving images with a Gaussian kernel.
# ╔═╡ 91109e5c-74b3-11eb-1f31-c50e436bc6e0
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@@ -460,8 +460,8 @@ Applying the convolution on a boundary requires special thought because it is li
# ╔═╡ b9d636da-7506-11eb-37a6-3116d47b2787
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