Fix post title from commit 268ab0d

Whoops :/

_layouts/post.html

@@ -79,7 +79,7 @@
         {% else %}
             <div class="container content">
         {% endif %}
-                <h1>{{ post.title }}</h1>
+                <h1>{{ page.title }}</h1>
                 {{ content }}
                 {% if site.footer == true %}
                     <hr />