Consolidate YAML files [part-13] (#9377)

This PR deals with YAML files referenced by the following two topics:
- concepts:object management
- concepts:service networking

When scanning references to the YAML files to be moved, some trivial
editings were applied to the markdown files. None of this editing should
break the build or ruin the doc otherwise.

content/en/docs/concepts/overview/working-with-objects/kubernetes-objects.md

@@ -36,12 +36,14 @@ When you create an object in Kubernetes, you must provide the object spec that d
 
 Here's an example `.yaml` file that shows the required fields and object spec for a Kubernetes Deployment:
 
-{{< code file="nginx-deployment.yaml" >}}
+{{< codenew file="application/deployment.yaml" >}}
 
-One way to create a Deployment using a `.yaml` file like the one above is to use the [`kubectl create`](/docs/reference/generated/kubectl/kubectl-commands#create) command in the `kubectl` command-line interface, passing the `.yaml` file as an argument. Here's an example:
+One way to create a Deployment using a `.yaml` file like the one above is to use the
+[`kubectl create`](/docs/reference/generated/kubectl/kubectl-commands#create) command
+in the `kubectl` command-line interface, passing the `.yaml` file as an argument. Here's an example:
 
 ```shell
-$ kubectl create -f https://k8s.io/docs/concepts/overview/working-with-objects/nginx-deployment.yaml --record
+$ kubectl create -f https://k8s.io/examples/application/deployment.yaml --record
 ```
 
 The output is similar to this: