Include description on check page

html/check.html

@@ -10,6 +10,10 @@
 
 {% block content %}
 
+<p>
+{{ check.get_description }}
+</p>
+
 <p>
 {% blocktrans with check.get_doc_url as link %}More information about this check is available in <a href="{{ link }}">documentation</a>.{% endblocktrans %}
 </p>