doc/cephfs: edit fs-volumes.rst (1 of x) followup

Include the suggestions for improving doc/cephfs/fs-volumes.rst made by
Anthony D'Atri here
ceph#57415 (comment)

Co-authored-by: Anthony D'Atri <[email protected]>
Signed-off-by: Zac Dover <[email protected]>

Author: zdover23

doc/cephfs/fs-volumes.rst

@@ -47,7 +47,7 @@ Create a volume by running the following command:
    ceph fs volume create <vol_name> [placement]
 
 This creates a CephFS file system and its data and metadata pools. This command
-can also deploy MDS daemons for the filesystem using a ceph-mgr orchestrator
+can also deploy MDS daemons for the filesystem using a Ceph Manager orchestrator
 module (for example Rook). See :doc:`/mgr/orchestrator`.
 
 ``<vol_name>`` is the volume name (an arbitrary string). ``[placement]`` is an
@@ -65,7 +65,7 @@ To remove a volume, run the following command:
    ceph fs volume rm <vol_name> [--yes-i-really-mean-it]
 
 This command removes a file system and its data and metadata pools. It also
-tries to remove MDS daemons using the enabled ceph-mgr orchestrator module.
+tries to remove MDS daemons using the enabled Ceph Manager orchestrator module.
 
 .. note:: After volume deletion, we recommend restarting `ceph-mgr` if a new
    file system is created on the same cluster and the subvolume interface is