add code formatting to commands in expose-external-ip-address tutorial

content/en/docs/tutorials/stateless-application/expose-external-ip-address.md

@@ -9,12 +9,8 @@ weight: 10
 This page shows how to create a Kubernetes Service object that exposes an
 external IP address.
 
-
-
-
 ## {{% heading "prerequisites" %}}
 
-
  * Install [kubectl](/docs/tasks/tools/install-kubectl/).
 
  * Use a cloud provider like Google Kubernetes Engine or Amazon Web Services to
@@ -25,19 +21,12 @@ external IP address.
  * Configure `kubectl` to communicate with your Kubernetes API server. For
  instructions, see the documentation for your cloud provider.
 
-
-
-
 ## {{% heading "objectives" %}}
 
-
 * Run five instances of a Hello World application.
 * Create a Service object that exposes an external IP address.
 * Use the Service object to access the running application.
 
-
-
-
 <!-- lessoncontent -->
 
 ## Creating a service for an application running in five pods
@@ -50,7 +39,6 @@ external IP address.
 kubectl apply -f https://k8s.io/examples/service/load-balancer-example.yaml
 ```
 
-
 The preceding command creates a
 {{< glossary_tooltip text="Deployment" term_id="deployment" >}}
 and an associated
@@ -61,26 +49,36 @@ The preceding command creates a
 
 1. Display information about the Deployment:
 
+    ```shell
     kubectl get deployments hello-world
     kubectl describe deployments hello-world
+    ```
 
 1. Display information about your ReplicaSet objects:
 
+    ```shell
     kubectl get replicasets
     kubectl describe replicasets
+    ```
 
 1. Create a Service object that exposes the deployment:
 
+    ```shell
     kubectl expose deployment hello-world --type=LoadBalancer --name=my-service
+    ```
 
 1. Display information about the Service:
 
+    ```shell
     kubectl get services my-service
+    ```
 
     The output is similar to this:
 
+    ```
     NAME         TYPE           CLUSTER-IP     EXTERNAL-IP      PORT(S)    AGE
     my-service   LoadBalancer   10.3.245.137   104.198.205.71   8080/TCP   54s
+    ```
 
     {{< note >}}
 
@@ -96,10 +94,13 @@ The preceding command creates a
 
 1. Display detailed information about the Service:
 
+    ```shell
     kubectl describe services my-service
+    ```
 
     The output is similar to this:
 
+    ```
     Name:           my-service
     Namespace:      default
     Labels:         app.kubernetes.io/name=load-balancer-example
@@ -113,6 +114,7 @@ The preceding command creates a
     Endpoints:      10.0.0.6:8080,10.0.1.6:8080,10.0.1.7:8080 + 2 more...
     Session Affinity:   None
     Events:         <none>
+    ```
 
     Make a note of the external IP address (`LoadBalancer Ingress`) exposed by
     your service. In this example, the external IP address is 104.198.205.71.
@@ -124,21 +126,27 @@ The preceding command creates a
    addresses of the pods that are running the Hello World application. To
    verify these are pod addresses, enter this command:
 
+    ```shell
     kubectl get pods --output=wide
+    ```
 
     The output is similar to this:
 
+    ```
     NAME                         ...  IP         NODE
     hello-world-2895499144-1jaz9 ...  10.0.1.6   gke-cluster-1-default-pool-e0b8d269-1afc
     hello-world-2895499144-2e5uh ...  10.0.1.8   gke-cluster-1-default-pool-e0b8d269-1afc
     hello-world-2895499144-9m4h1 ...  10.0.0.6   gke-cluster-1-default-pool-e0b8d269-5v7a
     hello-world-2895499144-o4z13 ...  10.0.1.7   gke-cluster-1-default-pool-e0b8d269-1afc
     hello-world-2895499144-segjf ...  10.0.2.5   gke-cluster-1-default-pool-e0b8d269-cpuc
+    ```
 
 1. Use the external IP address (`LoadBalancer Ingress`) to access the Hello
    World application:
 
+    ```shell
     curl http://<external-ip>:<port>
+    ```
 
     where `<external-ip>` is the external IP address (`LoadBalancer Ingress`)
     of your Service, and `<port>` is the value of `Port` in your Service
@@ -148,29 +156,27 @@ The preceding command creates a
 
     The response to a successful request is a hello message:
 
+    ```shell
     Hello Kubernetes!
-
+    ```
-
-
 
 ## {{% heading "cleanup" %}}
 
-
 To delete the Service, enter this command:
 
+```shell
 kubectl delete services my-service
+```
 
 To delete the Deployment, the ReplicaSet, and the Pods that are running
 the Hello World application, enter this command:
 
+```shell
 kubectl delete deployment hello-world
-
+```
-
-
 
 ## {{% heading "whatsnext" %}}
 
-
 Learn more about
 [connecting applications with services](/docs/concepts/services-networking/connect-applications-service/).