Fix HTML formatting for author links

Author: MTDoven

index.html

@@ -64,9 +64,9 @@ <h1 class="title is-1 publication-title">Scaling Up Parameter Generation: A Recu
           </div>
           <div class="is-size-5 publication-authors">
             <span class="author-block">
-              <a href="https://www.nus.edu.sg/" target="_blank">National University of Singapore</a>  </span>
+              <a href="https://www.nus.edu.sg/" target="_blank">National University of Singapore</a>,  </span>
             <span class="author-block">
-              <a href="https://www.unisg.ch/" target="_blank">University of St.Gallen</a>  </span>
+              <a href="https://www.unisg.ch/" target="_blank">University of St.Gallen</a>,  </span>
             <span class="author-block">
               <a href="https://www.utexas.edu/" target="_blank">University of Texas at Austin</a>  </span>
             <span class="eql-cntrb"><small><br>Kai and Dongwen contributed equally to this work.</small>  </span>