doc - Fix apidoc for granular wiki page permissions
doc - Fix apidoc for granular wiki page permissions

Refs FOO-164
flag=none

In an oversight, when the "manage wiki" permission was split
into three granular permissions and a group, the apidoc
comments in the role_overrides_controller were not updated
to reflect the change in permissions.

Test plan:
* no changes to code, only apidoc comments

Change-Id: Ib40280bd566d92c9f424c661ca5302834610b393
Reviewed-on: https://gerrit.instructure.com/c/canvas-lms/+/253366
Reviewed-by: August Thornton <9adc7a1161ddf32ff608de792a7e50179545f026@instructure.com>
QA-Review: August Thornton <9adc7a1161ddf32ff608de792a7e50179545f026@instructure.com>
Product-Review: August Thornton <9adc7a1161ddf32ff608de792a7e50179545f026@instructure.com>
Tested-by: Service Cloud Jenkins <9144042a601061f88f1e1d7a1753ea3e2972119d@instructure.com>

instructure/canvas-lms,sfu/canvas-lms,instructure/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,instructure/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,instructure/canvas-lms,instructure/canvas-lms,instructure/canvas-lms,instructure/canvas-lms,sfu/canvas-lms,sfu/canvas-lms