- Add NVMe config info (same as R1) as common info for R2 and R3
- Clarify example command to add OSD for ceph (to clarify command is example,
drive may be different for user depending on setup)
Closes-Bug: 1853639
Change-Id: I9250842c9a0739016054746dce45b1f17d46172f
Signed-off-by: Kristal Dale <kristal.dale@intel.com>