[admin-guide] Fix the rst mark-ups for database service
[admin-guide] Fix the rst mark-ups for database service

Implements: blueprint admin-guide-mitaka

Change-Id: I15e4f3243487cf1fd85f52d1e43acbc59a31fecf

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