ceph: some documentations fixes
New documentation should have an entry in the 00-INDEX. Correct git
urls.
Signed-off-by: Cheng Renquan <crquan@gmail.com>
Signed-off-by: Sage Weil <sage@newdream.net>
authored by Cheng Renquan and committed by Sage Weil 8136b58d 94aa8ae1