Make sure April's photo shows on the website

Author: jasongrout

about.html

@@ -523,7 +523,7 @@
   affiliation: Anaconda
   gh_handle: RRosio
 - name: April Johnson 
-  photo: April_Johnson.jpeg
+  photo: April_Johnson.jpg
   affiliation: 2i2c
   gh_handle: aprilmj
   linkedin: https://www.linkedin.com/in/apriljohnson