Update file team.html

wiki/pages/team.html

@@ -153,7 +153,7 @@ Meet Our Team Members
 
   <div class="team-member">
     <div class="image-container">
-      <img src="https://static.igem.wiki/teams/5187/teammembers/cht.jpg" alt="cht">
+      <img src="https://static.igem.wiki/teams/5187/teammembers/cht.png" alt="cht">
     </div>
     <div class="text-area">
       <div class="name">HouTeng Chan</div>