Update index.html

index.html

@@ -45,7 +45,7 @@ <h2><a id="links" class="anchor" href="#links" aria-hidden="true"><span aria-hid
             <li>Specification <a href="https://github.com/BioPAX/specification">development</a></li>            
             <li><a href="http://www.biopax.org/downloads/biopax/">Archive and downloads</a></li>
             <li><a href="https://groups.google.com/forum/#!forum/biopax-discuss">Google group</a></li>
-            <li><a href="http://www.biopax.org/wiki/">Wiki (archive)</a></li>
+            <li><a href="http://www.biopax.org/mediawiki">Wiki (archive)</a></li>
             <li><a href="http://www.biopax.org/validator">BioPAX validator</a></li>
             <li><a href="http://co.mbine.org/standards/biopax">BioPAX @ COMBINE</a></li>
             <li>View BioPAX via