[ops-guide] Add backup information
[ops-guide] Add backup information

Add backup information for ceilometer and heat

Change-Id: I8e7271f1de54a3c7548676da0815555e931ffd97
Closes-bug: #1375623

openstack/openstack-manuals,AlekhyaMallina-Vedams/openstack-manuals,openstack/openstack-manuals,openstack/openstack-manuals,openstack/openstack-manuals,AlekhyaMallina-Vedams/openstack-manuals,AlekhyaMallina-Vedams/openstack-manuals