Format code style (#9055)

* Add code format

* Format code display

* Render style error

content/en/docs/tasks/configure-pod-container/assign-cpu-resource.md

@@ -97,7 +97,7 @@ kubectl get pod cpu-demo --output=yaml --namespace=cpu-example
 The output shows that the one Container in the Pod has a CPU request of 500 millicpu
 and a CPU limit of 1 cpu.
 
-```shell
+```yaml
 resources:
   limits:
     cpu: "1"
@@ -185,7 +185,7 @@ The output shows that the Pod's status is Pending. That is, the Pod has not been
 scheduled to run on any Node, and it will remain in the Pending state indefinitely:
 
 
-```
+```shell
 kubectl get pod cpu-demo-2 --namespace=cpu-example
 NAME         READY     STATUS    RESTARTS   AGE
 cpu-demo-2   0/1       Pending   0          7m