Update service-access-application-cluster.md (#8699)

* Update service-access-application-cluster.md

Fix code snippet formatting and indentation in ordered list (#8698)

* Fixes code formatting using code fences

Here's a pass with code fences. It seems to work well, and I indented the code fences in the source for readability, even though it wasn't needed for proper indentation in the rendered output.

I wasn't able to use code fences and get the text "The response to a successful request is a hello message:" on its own line. I can achieve that using indentation, but for consistency's sake I used the code fences and placed the text with the paragraph above it.

* Adds `shell` to the code fences

content/en/docs/tasks/access-application-cluster/service-access-application-cluster.md

@@ -34,9 +34,9 @@ provides load balancing for an application that has two running instances.
 ## Creating a service for an application running in two pods
 
 1. Run a Hello World application in your cluster:
-
+   ```shell
    kubectl run hello-world --replicas=2 --labels="run=load-balancer-example" --image=gcr.io/google-samples/node-hello:1.0  --port=8080
-
+   ```   
     The preceding command creates a
     [Deployment](/docs/concepts/workloads/controllers/deployment/)
     object and an associated
@@ -46,25 +46,28 @@ provides load balancing for an application that has two running instances.
     each of which runs the Hello World application.
 
 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=NodePort --name=example-service
+   ```
 
 1. Display information about the Service:
-
+   ```shell
    kubectl describe services example-service
-
+   ```
    The output is similar to this:
-
+   ```shell
    Name:                   example-service
    Namespace:              default
    Labels:                 run=load-balancer-example
@@ -78,27 +81,28 @@ provides load balancing for an application that has two running instances.
    Endpoints:              10.200.1.4:8080,10.200.2.5:8080
    Session Affinity:       None
    Events:                 <none>
-
+   ```
    Make a note of the NodePort value for the service. For example,
    in the preceding output, the NodePort value is 31496.
 
 1. List the pods that are running the Hello World application:
-
+   ```shell
    kubectl get pods --selector="run=load-balancer-example" --output=wide
-
+   ```
    The output is similar to this:
-
+   ```shell
    NAME                           READY   STATUS    ...  IP           NODE
    hello-world-2895499144-bsbk5   1/1     Running   ...  10.200.1.4   worker1
    hello-world-2895499144-m1pwt   1/1     Running   ...  10.200.2.5   worker2
-
+   ```
 1. Get the public IP address of one of your nodes that is running
    a Hello World pod. How you get this address depends on how you set
    up your cluster. For example, if you are using Minikube, you can
    see the node address by running `kubectl cluster-info`. If you are
    using Google Compute Engine instances, you can use the
    `gcloud compute instances list` command to see the public addresses of your
-   nodes. For more information about this command, see the [GCE documentation](https://cloud.google.com/sdk/gcloud/reference/compute/instances/list). 
+   nodes. For more information about this command, see the [GCE documentation](https://cloud.google.com/sdk/gcloud/
+reference/compute/instances/list).
 
 1. On your chosen node, create a firewall rule that allows TCP traffic
    on your node port. For example, if your Service has a NodePort value of
@@ -108,15 +112,15 @@ provides load balancing for an application that has two running instances.
    for example.
 
 1. Use the node address and node port to access the Hello World application:
-
+   ```shell
    curl http://<public-node-ip>:<node-port>
-
+   ```
    where `<public-node-ip>` is the public IP address of your node,
-    and `<node-port>` is the NodePort value for your service.
+   and `<node-port>` is the NodePort value for your service. The
-
+   response to a successful request is a hello message:
-    The response to a successful request is a hello message:
+   ```shell
-
    Hello Kubernetes!
+   ```
 
 ## Using a service configuration file
 
@@ -146,6 +150,3 @@ the Hello World application, enter this command:
 Learn more about
 [connecting applications with services](/docs/concepts/services-networking/connect-applications-service/).
 {{% /capture %}}
-
-
-