Add Code blocks in limit-storage-consumption.md

* Add Code blocks in the Markdown spec to make it easy to read.

Signed-off-by: ydFu <[email protected]>

Author: ydFu

content/en/docs/tasks/administer-cluster/limit-storage-consumption.md

@@ -12,7 +12,6 @@ The following resources are used in the demonstration: [ResourceQuota](/docs/con
 and [PersistentVolumeClaim](/docs/concepts/storage/persistent-volumes/).
 
 
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 ## {{% heading "prerequisites" %}}
 
 
@@ -41,7 +40,7 @@ the values set by the admin.
 
 In this example, a PVC requesting 10Gi of storage would be rejected because it exceeds the 2Gi max.
 
-```
+```yaml
 apiVersion: v1
 kind: LimitRange
 metadata:
@@ -67,7 +66,7 @@ In this example, a 6th PVC in the namespace would be rejected because it exceeds
 a 5Gi maximum quota when combined with the 2Gi max limit above, cannot have 3 PVCs where each has 2Gi. That would be 6Gi requested
  for a namespace capped at 5Gi.
 
-```
+```yaml
 apiVersion: v1
 kind: ResourceQuota
 metadata:
@@ -78,16 +77,10 @@ spec:
     requests.storage: "5Gi"
 ```
 
-
-
 <!-- discussion -->
 
 ## Summary
 
 A limit range can put a ceiling on how much storage is requested while a resource quota can effectively cap the storage
 consumed by a namespace through claim counts and cumulative storage capacity. The allows a cluster-admin to plan their
 cluster's storage budget without risk of any one project going over their allotment.
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