julia's photo was a jpeg rather than a jpg

Author: katyhuff

_data/alumni.yml

@@ -355,7 +355,7 @@
       name: Linkedin
 
 - name: Julia Roessler
-  pic: /img/people/roesslerj.jpg
+  pic: /img/people/roesslerj.jpeg
   dates: 2019
   role: Undergraduate Research Assistant
   description: 'Julia was an undergraduate student at the University of Illinois who is eager to gain technical experience in the nuclear engineering field.'