Switch from django-markdown-deux to a pipeline thru markdown for rendering + bleach for sanitising

entries/templates/entries/h-entry.html

@@ -1,4 +1,4 @@
-{% load humanize markdown_deux_tags %}<article class="card h-entry">
+{% load humanize markdown %}<article class="card h-entry">
 	<div class="card-body">
 		{% if entry.name %}<h4 class="card-title p-name">{{ entry.name }}</h4>{% endif %}
 		<div class="e-content{% if not entry.name %} p-name{% endif %}">{{ entry.content | markdown }}</div>