doc/rgw: fix caption

Rewrite the third paragraph of the caption to the figure depicting how a
zonegroup works.

Follows https://github.com/ceph/ceph/pull/50316.

Signed-off-by: Zac Dover <zac.dover@proton.me>
(cherry picked from commit 8fa521466023635436305c1af31501bbbe20e857)

diff --git a/doc/radosgw/multisite.rst b/doc/radosgw/multisite.rst
index 1621a581414f46afa87631b83160dd54bfd081ca..55771d6baefc38739ec2a5574001e9d8779ef551 100644 (file)
--- a/doc/radosgw/multisite.rst
+++ b/doc/radosgw/multisite.rst
@@ -77,8 +77,8 @@ movement of data from the applications to the zonegroup. The arrow from the
 master zone (US-EAST) to the secondary zone (US-WEST) represents an act of data
 synchronization.
 
-At the bottom of this diagram, we see the master zonegroup that contains the
-master zone and the secondary zone.
+At the bottom of this diagram, we see the data distributed into the Ceph
+Storage Cluster.
 
 For additional details on setting up a cluster, see `Ceph Object Gateway for
 Production <https://access.redhat.com/documentation/en-us/red_hat_ceph_storage/3/html/ceph_object_gateway_for_production/index/>`__.