Readme update with Bluestore compression options

Change-Id: Iafc4227a877ce23d9c0e42686fecd2a171f9d824
diff --git a/README.rst b/README.rst
index 944ae77..07fc9da 100644
--- a/README.rst
+++ b/README.rst
@@ -302,12 +302,10 @@
             - dev: /dev/sdm
               enabled: false
               journal: /dev/ssd
-              fs_type: xfs
               class: bestssd
               weight: 1.5
             - dev: /dev/sdl
               journal: /dev/ssd
-              fs_type: xfs
               class: bestssd
               weight: 1.5
           bluestore:
@@ -448,6 +446,25 @@
             application: rbd
 
 
+Inline compression for Bluestore backend
+
+.. code-block:: yaml
+
+    ceph:
+      setup:
+        pool:
+          volumes:
+            pg_num: 256
+            pgp_num: 256
+            type: replicated
+            crush_rule: hdd
+            application: rbd
+            compression_algorithm: snappy
+            compression_mode: aggressive
+            compression_required_ratio: .875
+            ...
+
+
 Ceph manage keyring keys
 ------------------------