doc: update cephfs

doc/ceph/README.md

@@ -17,6 +17,7 @@ Always refer back to the official documentation at https://docs.ceph.com/en/late
     - set mds fast failover with standby reply
 
 
+```
     sudo ceph osd erasure-code-profile set ec_4_1 k=4 m=1
     sudo ceph osd pool create media_data 128 erasure ec_4_1
     sudo ceph osd pool create media_metadata 32 replicated_rule
@@ -25,7 +26,7 @@ Always refer back to the official documentation at https://docs.ceph.com/en/late
     sudo ceph fs new mediafs media_metadata media_data --force
     sudo ceph fs set mediafs allow_standby_replay true
     sudo ceph fs set mediafs max_mds 2
-
+```
 
 ## creating authentication tokens
 
@@ -38,7 +39,12 @@ Always refer back to the official documentation at https://docs.ceph.com/en/late
         - read/write /common
     - osd: read/write to cephfs_data pool
 
-    sudo ceph auth get-or-create client.media mon 'allow r' mds 'allow r path=/, allow rw path=/media, allow rw path=/common' osd 'allow rw pool=cephfs_data'
+```
+    sudo ceph auth get-or-create client.media \
+      mon 'allow r' \
+      mds 'allow r path=/, allow rw path=/media, allow rw path=/common' \
+      osd 'allow rw pool=cephfs_data'
+```
 
 ## list the authentication tokens and permissions
 
@@ -48,4 +54,7 @@ Always refer back to the official documentation at https://docs.ceph.com/en/late
 
 this will overwrite the current capabilities of a given client.user
 
-    sudo ceph auth caps client.media mon 'allow r' mds 'allow rw path=/' osd 'allow rw pool=media_data'
+    sudo ceph auth caps client.media \
+      mon 'allow r' \
+      mds 'allow rw path=/' \
+      osd 'allow rw pool=media_data'