Update homepage.html

Author: ruixie7

_layouts/homepage.html

@@ -41,7 +41,7 @@
       <a href="{{ site.affiliation_link }}"><img width="190" src="{{ site.affiliation_logo }}"></a>
 
       <div id="myLinks">
-      {% include navigation.md %}
+      {% include nav.html %}
       </div>
 
 <!--       <a href="javascript:void(0);" class="icon" onclick="myFunction()">