Rename menu item, because the page now shows chartering WGs and RGs.

Commit ready for merge.
 - Legacy-Id: 9860

Author: larseggert

ietf/templates/base/menu.html

@@ -25,7 +25,7 @@
 
   {% if flavor == "top" %}<li class="divider hidden-xs"></li>{% endif %}
   <li {%if flavor == "top" %}class="dropdown-header hidden-xs"{% else %}class="nav-header"{% endif %}>New work</li>
-  <li><a href="{% url "ietf.group.info.chartering_groups" %}">Chartering WGs</a></li>
+  <li><a href="{% url "ietf.group.info.chartering_groups" %}">Chartering groups</a></li>
   <li><a href="{% url "ietf.group.info.bofs" group_type="wg" %}">BOFs</a></li>
 
   {% if flavor == "top" %}<li class="divider hidden-xs"></li>{% endif %}