_navigation.html.erb in administrate-0.13.0

- old
+ new

@@ -6,13 +6,15 @@
 for all resources in the admin dashboard,
 as defined by the routes in the `admin/` namespace
 %>
 
 <nav class="navigation" role="navigation">
+  <%= link_to "Back to app", root_url, class: "button button--alt" %> 
+
   <% Administrate::Namespace.new(namespace).resources.each do |resource| %>
     <%= link_to(
       display_resource_name(resource),
       [namespace, resource_index_route_key(resource)],
       class: "navigation__link navigation__link--#{nav_link_state(resource)}"
-    ) %>
+    ) if valid_action? :index, resource  %>
   <% end %>
 </nav>