Update podpreset.md

docs/tasks/inject-data-application/podpreset.md

@@ -31,7 +31,7 @@ kubectl create -f https://k8s.io/docs/tasks/inject-data-application/podpreset-pr
 Examine the created PodPreset:
 
 ```shell
-kubectl get podpreset
+$ kubectl get podpreset
 NAME             AGE
 allow-database   1m
 ```
@@ -43,13 +43,13 @@ The new PodPreset will act upon any pod that has label `role: frontend`.
 Create a pod:
 
 ```shell
-kubectl create -f https://k8s.io/docs/tasks/inject-data-application/podpreset-pod.yaml
+$ kubectl create -f https://k8s.io/docs/tasks/inject-data-application/podpreset-pod.yaml
 ```
 
 List the running Pods:
 
 ```shell
-kubectl get pods
+$ kubectl get pods
 NAME      READY     STATUS    RESTARTS   AGE
 website   1/1       Running   0          4m
 ```
@@ -61,7 +61,7 @@ website   1/1       Running   0          4m
 To see above output, run the following command:
 
 ```shell
-kubectl get pod website -o yaml
+$ kubectl get pod website -o yaml
 ```
 
 ### Pod Spec with `ConfigMap` Example
@@ -145,7 +145,7 @@ when there is a conflict.
 
 **If we run `kubectl describe...` we can see the event:**
 
-```
+```shell
 $ kubectl describe ...
 ....
 Events: