Add a heading for Crates on a category page

To better distinguish subcategories and crates. This makes "crates" in
the h1 redundant, especially when there *aren't* subcategories.

Author: carols10cents

app/templates/category/index.hbs

@@ -2,7 +2,7 @@
 
 <div id='crates-heading'>
     <img class='logo crate' src="/assets/crate.png"/>
-    <h1>{{ category.category }} Crates</h1>
+    <h1>{{ category.category }}</h1>
 </div>
 
 {{#if category.subcategories }}
@@ -31,6 +31,7 @@
   </div>
 {{/if}}
 
+<h2>Crates</h2>
 <div id='results'>
     <div class='nav'>
         <span class='amt small'>