Make dialog buttons a <div> instead of <p>, render Markdown in blog and post descriptions

templates/404.html

@@ -10,10 +10,10 @@
 
 <p>The requested page could not be found.{% if config.extra.issues_url %} If you feel this is not normal, then you can create an issue on the issue tracker.{% endif %}</p>
 
-<p class="dialog-buttons">
+<div class="dialog-buttons">
 	<a onclick="window.history.go(-1)" class="inline-button">Go Back</a>
 	{% if config.extra.issues_url %}
 		<a class="inline-button colored" href="{{ config.extra.issues_url }}">File an Issue</a>
 	{% endif %}
-</p>
+</div>
 {% endblock content %}