Add docs for Ceph RGWs with Cephadm #1705

Job	Run time
Tox pep8 with Python 3.8	30s
Tox releasenotes with Python 3.8	26s
Tox docs with Python 3.8	25s
Build Kayobe Image / Build kayobe image	18m 55s
aio (CentOS OVS) / All in one	1m 22s
aio (Rocky OVN) / All in one	1m 19s
aio (Rocky OVS) / All in one	1m 17s
aio (CentOS OVN) / All in one	1h 14m 22s
aio (Ubuntu OVS) / All in one	1m 22s
aio (Rocky 9 OVS) / All in one	1h 2m 32s
aio (Ubuntu OVN) / All in one	1h 8m 1s
aio (Ubuntu Jammy OVN) / All in one	1m 20s
aio (Ubuntu Jammy OVS) / All in one	1m 18s
aio (Rocky 9 OVN) / All in one	1h 6m 57s
	5h 0m 6s

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