Use subtitle instead of subtext

templates/article.html

@@ -13,7 +13,7 @@
 <article>
 <div class="row-fluid">
     <header class="page_header span10 offset2">
-    <h1><a href="{{ SITEURL }}/{{ article.url }}"> {{ article.title }} {%if article.subtext %} <small> {{ article.subtext }} </small> {% endif %} </a></h1>
+    <h1><a href="{{ SITEURL }}/{{ article.url }}"> {{ article.title }} {%if article.subtitle %} <small> {{ article.subtitle }} </small> {% endif %} </a></h1>
     </header>
 </div>