lowercase back to overview
<a class="btn btn-default btn-sm pull-right" accesskey="e" href="{% url 'editor.section.edit' pk=section.id %}">{% trans 'Edit Section' %}</a>
<h3>{{ section.title }}</h3>
<p>
- <a href="{% url 'editor.index' %}">&laquo; {% trans 'Back to overview' %}</a>
+ <a href="{% url 'editor.index' %}">&laquo; {% trans 'back to overview' %}</a>
</p>
