On charter doc page only generate link to /wg/ if the group is a WG,

not if it is an AG
 - Legacy-Id: 6059

Author: OleLaursen

ietf/templates/doc/document_charter.html

@@ -25,7 +25,7 @@
     {% if snapshot %}Snapshot of{% endif %}
     {% if doc.get_state_slug != "approved" %}Proposed{% endif %}
     Charter for "{{ group.name }}"
-    (<a href="{% url ietf.wginfo.views.wg_charter acronym=group.acronym %}">{{ group.acronym }}</a>) {{ group.type.name }}
+    (<a {% if group.type.slug == "wg" %}href="{% url ietf.wginfo.views.wg_charter acronym=group.acronym %}"{% endif %}>{{ group.acronym }}</a>) {{ group.type.name }}
   </div>
 
   <table id="metatable" width="100%">