twenty-orgs-per-page.patch

diff --git a/ckan/controllers/group.py b/ckan/controllers/group.py
index b89642b..18b3eef 100644
--- a/ckan/controllers/group.py
+++ b/ckan/controllers/group.py
@@ -162,7 +162,7 @@ class GroupController(base.BaseController):
             collection=results,
             page=request.params.get('page', 1),
             url=h.pager_url,
-            items_per_page=21
+            items_per_page=20
         )
         return render(self._index_template(group_type))