fix example-ingress.yaml format error

Signed-off-by: Weiping Cai <weiping.cai@daocloud.io>

content/en/docs/tasks/access-application-cluster/ingress-minikube.md

@@ -132,31 +132,12 @@ The following file is an Ingress resource that sends traffic to your Service via
 
 1. Create `example-ingress.yaml` from the following file:
 
-    ```yaml
-    apiVersion: networking.k8s.io/v1
-    kind: Ingress
-    metadata:
-      name: example-ingress
-      annotations:
-        nginx.ingress.kubernetes.io/rewrite-target: /$1
-    spec:
-      rules:
-      - host: hello-world.info
-        http:
-          paths:
-          - path: /
-            pathType: Prefix
-            backend:
-              service:
-                name: web
-                port:
-                  number: 8080
-    ```
+  {{< codenew file="ingress/example-ingress.yaml" >}}
 
 1. Create the Ingress resource by running the following command:
 
     ```shell
-    kubectl apply -f example-ingress.yaml
+    kubectl apply -f https://k8s.io/examples/ingress/example-ingress.yaml
     ```
 
     Output:

content/en/examples/ingress/example-ingress.yaml

@@ -0,0 +1,18 @@
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: example-ingress
+  annotations:
+    nginx.ingress.kubernetes.io/rewrite-target: /$1
+spec:
+  rules:
+    - host: hello-world.info
+      http:
+        paths:
+          - path: /
+            pathType: Prefix
+            backend:
+              service:
+                name: web
+                port:
+                  number: 8080