Merge pull request #11532 from satnam6502/doc27

Add YAML formatting to persisent volumes doc

docs/user-guide/persistent-volumes.md

@@ -116,8 +116,7 @@ A `PersistentVolume's` reclaim policy tells the cluster what to do with the volu
 Each PV contains a spec and status, which is the specification and status of the volume.  
 
 
-```
-
+```yaml
   apiVersion: v1
   kind: PersistentVolume
   metadata:
@@ -131,7 +130,6 @@ Each PV contains a spec and status, which is the specification and status of the
     nfs:
       path: /tmp
       server: 172.17.0.2
-	
 ```
 
 ### Capacity
@@ -183,8 +181,7 @@ The CLI will show the name of the PVC bound to the PV.
 
 Each PVC contains a spec and status, which is the specification and status of the claim.
 
-```
-
+```yaml
 kind: PersistentVolumeClaim
 apiVersion: v1
 metadata:
@@ -195,7 +192,6 @@ spec:
   resources:
     requests:
       storage: 8Gi
-
 ```
 
 ### Access Modes
@@ -210,8 +206,7 @@ Claims, like pods, can request specific quantities of a resource.  In this case,
 
 Pods access storage by using the claim as a volume.  Claims must exist in the same namespace as the pod using the claim.  The cluster finds the claim in the pod's namespace and uses it to get the `PersistentVolume` backing the claim.  The volume is then mounted to the host and into the pod.
 
-```
-
+```yaml
 kind: Pod
 apiVersion: v1
 metadata:
@@ -227,7 +222,6 @@ spec:
     - name: mypd
       persistentVolumeClaim:
         claimName: myclaim
-
 ```