Fix URL variable

Author: solidnerd

themes/hyde/layouts/partials/sidebar.html

@@ -13,7 +13,7 @@ <h1><a href="/">{{ .Site.Title }}</a></h1>
     <ul class="sidebar-nav">
       <li><a href="/">HOME</a> </li>
       {{ range .Site.Menus.main }}
-        <li><a href="{{.Url}}"> {{ .Name }} </a></li>
+        <li><a href="{{.URL}}"> {{ .Name }} </a></li>
       {{end}}
     </ul>