sidelink layout change

layouts/partials/column2.html

@@ -48,9 +48,11 @@
                 <h3 class="panel-title">HEL.L.U.G. Sites</h3>
             </div>
         <div class="panel-body" align="left">
+            <ul class="nav">
               {{ range .Site.Data.sidebar.links.hellug }}
-            <a href={{ .url }}><button type="button" class="btn btn-link">{{ .name }}</button></a>
+              <li class="nav-item"><a href={{ .url }}><button type="button" class="btn btn-link">{{ .name }}</button></a></li>
               {{ end }}
+            </ul>
         </div>
         </div>
         <div class="panel panel-info">