Use the same layout for group additional URLs as for documents. Fixes issue ietf-tools#2386.

 - Legacy-Id: 14186

Author: levkowetz

ietf/templates/group/group_about.html

@@ -125,7 +125,7 @@
 	  </td>
           <td>
             {% if urls %}
-	    <table>
+	    <table class="col-md-12 col-sm-12 col-xs-12">
 	      <tbody>
 		{% for url in urls %}
 		<tr><td> - <a href="{{ url.url }}">{% firstof url.name url.url %}</a></td></tr>