Use h1 as the main heading in the base template

aleksis/core/templates/core/base.html

@@ -116,7 +116,7 @@
   {% endif %}
 
   {% block no_page_title %}
-    <h4>{% block page_title %}{% endblock %}</h4>
+    <h1>{% block page_title %}{% endblock %}</h1>
   {% endblock %}
 
   {% block content %}{% endblock %}