keep content and file name to be consistent (#16532)

content/en/docs/tasks/administer-cluster/manage-resources/cpu-constraint-namespace.md

@@ -167,7 +167,7 @@ request that is too small:
 
 ```
 Error from server (Forbidden): error when creating "examples/admin/resource/cpu-constraints-pod-3.yaml":
-pods "constraints-cpu-demo-4" is forbidden: minimum cpu usage per Container is 200m, but request is 100m.
+pods "constraints-cpu-demo-3" is forbidden: minimum cpu usage per Container is 200m, but request is 100m.
 ```
 
 ## Create a Pod that does not specify any CPU request or limit

content/en/examples/admin/resource/cpu-constraints-pod-3.yaml

@@ -1,10 +1,10 @@
 apiVersion: v1
 kind: Pod
 metadata:
-  name: constraints-cpu-demo-4
+  name: constraints-cpu-demo-3
 spec:
   containers:
-  - name: constraints-cpu-demo-4-ctr
+  - name: constraints-cpu-demo-3-ctr
     image: nginx
     resources:
       limits: