[zh] Update host in example-ingress.yaml to hello-world.example

Signed-off-by: ydFu <ader.ydfu@gmail.com>

content/zh-cn/examples/service/networking/example-ingress.yaml

@@ -6,7 +6,7 @@ metadata:
     nginx.ingress.kubernetes.io/rewrite-target: /$1
 spec:
   rules:
-    - host: hello-world.info
+    - host: hello-world.example
       http:
         paths:
           - path: /