Inform on group page that members are synced upon login on the srcfpo theme

Signed-off-by: Pierre-Yves Chibon <pingou@pingoured.fr>

pagure/themes/srcfpo/templates/group_info.html

@@ -54,6 +54,10 @@
             <h4 class="font-weight-bold mb-0">Group {{projectstring(plural=True)}}</h4>
             <span class="btn btn-outline-secondary disabled opacity-100 border-0 ml-auto font-weight-bold">{{ group.projects | length }} {{projectstring(plural=True)}}</span>
           </div>
+          <div class="alert alert-primary text-center p-4">
+            Group members are refreshed upon log in, users added will have
+            to log out and log back in for their membership to be synced.
+          </div>
         {% if group.projects | length > 0 %}
         {{render_repo_listing(group.projects)}}
         {% else %}