correct my thumbnail pic extension

Author: Yueqiao12Zhang

lab_members/index.html

@@ -171,7 +171,7 @@ <h3 class="people-title"> Undergraduate </h3>
                 src="../assets/lab_members/thumbnail/taz.jpg" /></a></li>
           <li><a href="../lab_members/undergraduate/yueqiao_zhang/">Yueqiao Zhang</a><a
             href="../lab_members/undergraduate/yueqiao_zhang/"><img class="member_photo_list"
-              src="../assets/lab_members/thumbnail/yueqiao_zhang.jpg" /></a></li>
+              src="../assets/lab_members/thumbnail/yueqiao_zhang.JPG" /></a></li>
           <li><a href="../lab_members/undergraduate/zhanna_klimanova/">Zhanna Klimanova</a><a
               href="../lab_members/undergraduate/zhanna_klimanova/"><img class="member_photo_list"
                 src="../assets/lab_members/thumbnail/placeholder.png" /></a></li>