Display the resign date of subscriptions

coin/members/templates/members/subscriptions.html

@@ -7,8 +7,9 @@
     <thead>
         <tr>
             <th width="60">Type</th>
-            <th>Identification</th>
-            <th>Date d'activation</th>
+            <th>Offre</th>
+            <th>Date de souscription</th>
+            <th>Date de résiliation</th>
             <th>Commentaire</th>
             <th>Configuration</th>
         </tr>
@@ -19,6 +20,7 @@
             <td>{{ subscription.offer.get_configuration_type_display }}</td>
             <td>{{ subscription.offer.name }}</td>
             <td>{{ subscription.subscription_date }}</td>
+            <td>{{ subscription.resign_date|default_if_none:"" }}</td>
             <td>{{ subscription.configuration.comment }}</td>
             <td>{% if subscription.configuration %}<a class="cfglink" href="{% url subscription.configuration.get_url_namespace|add:":details" id=subscription.configuration.id %}"><i class="fa fa-cog"></i> Configuration</a>{% endif %}</td>