Delete redundant '\n' (#5906)

* Delete redundant '\n'

* The unified style

docs/tasks/configure-pod-container/lifecycle-events.yaml

@@ -6,7 +6,6 @@ spec:
   containers:
   - name: lifecycle-demo-container
     image: nginx
-
     lifecycle:
       postStart:
         exec:

docs/tasks/configure-pod-container/memory-request-limit-2.yaml

@@ -8,7 +8,7 @@ spec:
     image: vish/stress
     resources:
       requests:
-        memory: 50Mi
+        memory: "50Mi"
       limits:
         memory: "100Mi"
     args:

docs/tasks/configure-pod-container/task-pv-pod.yaml

@@ -3,12 +3,10 @@ apiVersion: v1
 metadata:
   name: task-pv-pod
 spec:
-
   volumes:
     - name: task-pv-storage
       persistentVolumeClaim:
        claimName: task-pv-claim
-
   containers:
     - name: task-pv-container
       image: nginx
@@ -16,7 +14,7 @@ spec:
         - containerPort: 80
           name: "http-server"
       volumeMounts:
-      - mountPath: "/usr/share/nginx/html"
+        - mountPath: "/usr/share/nginx/html"
-        name: task-pv-storage
+          name: task-pv-storage