Update link protocol

app/main/start.html

@@ -44,7 +44,7 @@
 
 <div class="intro_text quickgo-panel homepage-info medium-12">
   <p>
-    GO version <strong><a href="//snapshot.geneontology.org/ontology/extensions/go-plus.owl" target="blank">{{goReleaseInfo.timestamp}}</a></strong><br/>
+    GO version <strong><a href="http://snapshot.geneontology.org/ontology/extensions/go-plus.owl" target="blank">{{goReleaseInfo.timestamp}}</a></strong><br/>
     Annotation set created on <strong>{{annotationReleaseInfo.timestamp}}</strong>
   </p>
 </div>