Merge pull request #73 from khanlab/update_grad_students

Update graduate students - add mahmoud image

Author: mahmoud1yaser

people/_posts/0000-04-01-mahmoud-yaser.md

@@ -4,7 +4,7 @@ name: Mahmoud Yaser
 position: Master's Student
 affiliation: Biomedical Engineering
 cosupervisor: Dr. Emma Duerden
-image: /assets/images/people/mahmoud-yaser.png
+image: /assets/images/people/mahmoud-yaser.jpeg
 alumni: false
 
 # social