Update CephFS option descriptions and unit

Signed-off-by: Anthony D'Atri <[email protected]>

Author: anthonyeleven

doc/cephfs/cache-configuration.rst

@@ -89,16 +89,10 @@ MDS Recall
 
 MDS limits its recall of client state (capabilities/leases) to prevent creating
 too much work for itself handling release messages from clients. This is controlled
-via the following configurations:
-
-
-The maximum number of capabilities to recall from a single client in a given recall
-event:
+via the following central config options:
 
 .. confval:: mds_recall_max_caps
 
-The threshold and decay rate for the decay counter on a session:
-
 .. confval:: mds_recall_max_decay_threshold
 
 .. confval:: mds_recall_max_decay_rate