doc/cephadm: correct "ceph orch apply" command

s/orch apply/ceph orch apply/ in a command where "ceph" was missing.

This was reported by Eugen Block to Zac Dover on 22 Oct 2024 through
Slack.

Co-authored-by: Eugen Block <[email protected]>
Signed-off-by: Zac Dover <[email protected]>

Author: zdover23

doc/cephadm/services/smb.rst

@@ -24,7 +24,7 @@ Samba Containers with the following command:
 
 .. prompt:: bash #
 
-    orch apply smb <cluster_id> <config_uri> [--features ...] [--placement ...] ...
+    ceph orch apply smb <cluster_id> <config_uri> [--features ...] [--placement ...] ...
 
 There are a number of additional parameters that the command accepts. See
 the Service Specification for a description of these options.