Nicer datetime format

Author: johanvdw

src/pretalx/orga/templates/orga/submission/review.html

@@ -117,7 +117,7 @@
             {% endfor %}
                 <div class="form-group row">
                     <label class="col-md-3 col-form-label">Submission time</label>
-		    <div class="col-md-9 mt-2"> {{ submission.created }}
+		    <div class="col-md-9 mt-2"> {{ submission.created |date:"Y-m-d H:iO" }}
                     </div>
                 </div>
             {% if no_anonymisation %}