Resize team images (#49)

* Convert all JPEG to PNG

* Remove PNG images

* Resize all images

* Update documentation with max image size

README.md

@@ -107,7 +107,7 @@ It's **key** that you add `layout: person` to the top of the page. This ensures
 
 Below this `YAML` frontmatter, add a short description of yourself using standard markdown syntax. This description appears when you click on a team member.
 
-**Note**: ensure that images for each team member (i.e. `image: "/assets/people/will-hannon.jpeg"`) have a square aspect ratio.
+**Note**: please ensure that images for each team member (i.e. `image: "/assets/people/will-hannon.jpeg"`) have a **square aspect ratio** to avoid issues with distortion. Also, images shouldn't be larger than 200KB, otherwise they're slow to load on the website.
 
 #### Adding Alumni
 

people/cassandra-simonich.md

@@ -1,7 +1,7 @@
 ---
 layout: person
 name: "Cassandra Simonich"
-image: "/assets/people/cassandra-simonich.png"
+image: "/assets/people/cassandra-simonich.jpg"
 title: "Pediatric Infectious Disease Fellow"
 category: "Postdocs"
 links:

people/jesse-bloom.md

@@ -1,7 +1,7 @@
 ---
 layout: person
 name: "Jesse Bloom"
-image: "/assets/people/jesse-bloom.png"
+image: "/assets/people/jesse-bloom.jpg"
 title: "Principal Investigator"
 category: "Faculty"
 links:

people/sara-sunshine.md

@@ -1,7 +1,7 @@
 ---
 layout: person
 name: "Sara Sunshine"
-image: "/assets/people/sara-sunshine.png"
+image: "/assets/people/sara-sunshine.jpg"
 title: "Postdoctoral Fellow"
 category: "Postdocs"
 links:

people/teagan-mcmahon.md

@@ -1,7 +1,7 @@
 ---
 layout: person
 name: "Teagan McMahon"
-image: "/assets/people/teagan-mcmahon.png"
+image: "/assets/people/teagan-mcmahon.jpg"
 title: "Research Technician"
 category: "Staff"
 links:

people/wenlin-ren.md

@@ -1,7 +1,7 @@
 ---
 layout: person
 name: "Wenlin Ren"
-image: "/assets/people/wenlin-ren.png"
+image: "/assets/people/wenlin-ren.jpg"
 title: "Postdoctoral Fellow"
 category: "Postdocs"
 links: