A tag must not have two class properties (#380)

Author: senyai

views/pages/layouts/examples/side-menu.handlebars

@@ -18,7 +18,7 @@
                 <li class="pure-menu-item"><a href="#" class="pure-menu-link">Home</a></li>
                 <li class="pure-menu-item"><a href="#" class="pure-menu-link">About</a></li>
 
-                <li class="pure-menu-item" class="menu-item-divided pure-menu-selected">
+                <li class="pure-menu-item menu-item-divided pure-menu-selected">
                     <a href="#" class="pure-menu-link">Services</a>
                 </li>