Fix #11982 (#11983)

* Update deployment.md

* Update nginx-deployment.yaml

content/en/docs/concepts/workloads/controllers/deployment.md

@@ -66,9 +66,9 @@ In this example:
   * The Pods are labeled `app: nginx`using the `labels` field.
   * The Pod template's specification, or `.template.spec` field, indicates that
   the Pods run one container, `nginx`, which runs the `nginx`
-  [Docker Hub](https://hub.docker.com/) image at version 1.15.4.
+  [Docker Hub](https://hub.docker.com/) image at version 1.7.9.
   * Create one container and name it `nginx` using the `name` field.
-  * Run the `nginx` image at version `1.15.4`.
+  * Run the `nginx` image at version `1.7.9`.
   * Open port `80` so that the container can send and accept traffic.
 
 To create this Deployment, run the following command:

content/en/examples/controllers/nginx-deployment.yaml

@@ -16,6 +16,6 @@ spec:
     spec:
       containers:
       - name: nginx
-        image: nginx:1.15.4
+        image: nginx:1.7.9
         ports:
         - containerPort: 80