Adding Difei Zhang photo.

Author: emmanuellujan

_assets/people.csv

@@ -13,7 +13,7 @@ Alexander Lenail,PhD Student,https://alexlenail.me/,Current Member,Yes
 Ali Ramadhan,PhD Student,https://www.linkedin.com/in/ali-ramadhan/,Current Member,Yes
 Avik Pal,PhD Student,https://avik-pal.github.io/,Current Member,Yes
 Bowen Zhu,PhD Student,https://www.linkedin.com/in/bowen-zhu-129587216/,Current Member,Yes
-Difei Zhang,PhD Student,https://www.linkedin.com/in/difeizhang/,Current Member,No
+Difei Zhang,PhD Student,https://www.linkedin.com/in/difeizhang/,Current Member,Yes
 Emily Helen Nieves,PhD Student,https://github.com/nievesemily8,Current Member,Yes
 Flemming Holtorf,PhD Student,https://github.com/FHoltorf,Current Member,Yes
 Nicholas E Klugman,PhD Student,https://www.linkedin.com/in/nicholas-klugman/,Current Member,Yes