Fixes #2089 by updating the docstring.

ckan/logic/action/create.py

@@ -108,9 +108,9 @@ def package_create(context, data_dict):
     :param groups: the groups to which the dataset belongs (optional), each
         group dictionary should have one or more of the following keys which
         identify an existing group:
-        ``'id'`` (the id of the group, string), ``'name'`` (the name of the
-        group, string), ``'title'`` (the title of the group, string), to see
-        which groups exist call :py:func:`~ckan.logic.action.get.group_list`
+        ``'id'`` (the id of the group, string), or ``'name'`` (the name of the
+        group, string),  to see which groups exist
+        call :py:func:`~ckan.logic.action.get.group_list`
     :type groups: list of dictionaries
     :param owner_org: the id of the dataset's owning organization, see
         :py:func:`~ckan.logic.action.get.organization_list` or