Update 'cinder-specs-core' description
We've expanded it to include appropriate non-cinder-core people,
so update the description to reflect that.
@@ -53,7 +53,7 @@ The Cinder project has total control over the membership of these groups.
- https://review.opendev.org/#/admin/groups/83,members
* - cinder-specs-core
- +2 powers in cinder-specs repository
- - cinder-core (plus others if appropriate; currently only cinder-core)
+ - cinder-core plus other appropriate people
- https://review.opendev.org/#/admin/groups/344,members
* - cinder-tempest-plugin-core
- +2 powers on the cinder-tempest-plugin repository
