doc: Reformatting on rbd replay doc.

Signed-off-by: John Wilkins <john.wilkins@inktank.com>

doc/rbd/rbd-replay.rst

@@ -4,13 +4,15 @@
 
 .. index:: Ceph Block Device; RBD Replay
 
-RBD Replay is a set of tools for capturing and replaying Rados Block Device (RBD) workloads.
-To capture an RBD workload, ``lttng-tools`` must be installed on the client, and ``librbd`` on the clent must be the Giant release or later.
-To replay an RBD workload, ``librbd`` on the clent must be the Giant release or later.
+RBD Replay is a set of tools for capturing and replaying Rados Block Device
+(RBD) workloads. To capture an RBD workload, ``lttng-tools`` must be installed
+on the client, and ``librbd`` on the client must be the v0.87 (Giant) release 
+or later. To replay an RBD workload, ``librbd`` on the client must be the Giant
+release or later.
 
-Capture and replay takes three steps\:
+Capture and replay takes three steps:
 
-1) Capture the trace.  Make sure to capture ``pthread_id`` context::
+#. Capture the trace.  Make sure to capture ``pthread_id`` context::
 
     mkdir -p traces
     lttng create -o traces librbd
@@ -20,18 +22,21 @@ Capture and replay takes three steps\:
     # run RBD workload here
     lttng stop
 
-2) Process the trace with `rbd-replay-prep`_::
+#. Process the trace with `rbd-replay-prep`_::
 
     rbd-replay-prep traces/ust/uid/*/* replay.bin
 
-3) Replay the trace with `rbd-replay`_. Use read-only until you know it's doing what you want::
+#. Replay the trace with `rbd-replay`_. Use read-only until you know 
+   it's doing what you want::
 
     rbd-replay --read-only replay.bin
 
-.. important:: ``rbd-replay`` will destroy data by default.  Do not use against an image you wish to keep, unless you use the ``--read-only`` option.
+.. important:: ``rbd-replay`` will destroy data by default.  Do not use against 
+   an image you wish to keep, unless you use the ``--read-only`` option.
 
-The replayed workload does not have to be against the same RBD image or even the same cluster as the captured workload.
-To account for differences, you may need to use the ``--pool`` and ``--map-image`` options of ``rbd-replay``.
+The replayed workload does not have to be against the same RBD image or even the
+same cluster as the captured workload. To account for differences, you may need
+to use the ``--pool`` and ``--map-image`` options of ``rbd-replay``.
 
 .. _rbd-replay: ../../man/8/rbd-replay
 .. _rbd-replay-prep: ../../man/8/rbd-replay-prep