Thorough replacement of git.openstack.org URLs with their opendev.org counterparts. Change-Id: I3e0af55e0707f04428a422b973d016ad30c82a12
Import all docs from openstack-manuals. Part of bp: doc-migration Change-Id: I28bb8ce1f4a8653f176a554d2e95b4423c437972 Co-Authored-By: Stephen Finucane <sfinucan@redhat.com>