Description of problem:

Section 4.3[1] should not have these steps. Instead, the section should link to the new Block Storage Backup Guide. 

Section 4.2 [1] also needs a similar update to remove the reference to steps on backup service and instead link to the guide. 

[1] https://access.redhat.com/documentation/en-us/red_hat_openstack_platform/13/html/deploying_an_overcloud_with_containerized_red_hat_ceph/enable-ceph-overcloud#cinder-backup-ceph

Version-Release number of selected component (if applicable): 14