Deprecate openstack heat (#5670)

* Fix typo in pod preset conflict example

Move container port definition to the correct line.

* Highlight openstack-heat provider deprecation

The openstack-heat provider for kube-up is being deprecated and will be
removed in a future release.

docs/getting-started-guides/openstack-heat.md

@@ -10,6 +10,9 @@ title: OpenStack Heat
 
 ## Getting started with OpenStack
 
+**Note:** The `openstack-heat` provider that this guide uses is deprecated as of
+Kubernetes v1.8 and will be removed in a future release.
+
 This guide will take you through the steps of deploying Kubernetes to Openstack using `kube-up.sh`. The primary mechanisms for this are [OpenStack Heat](https://wiki.openstack.org/wiki/Heat) and the [SaltStack](https://git.k8s.io/kubernetes/cluster/saltbase) distributed with Kubernetes.
 
 The default OS is CentOS 7, this has not been tested on other operating systems.

docs/tasks/inject-data-application/podpreset.md

@@ -526,10 +526,10 @@ spec:
         - mountPath: /cache
           name: cache-volume
       ports:
+        - containerPort: 80
   volumes:
     - name: cache-volume
       emptyDir: {}
-        - containerPort: 80
 ```
 
 **If we run `kubectl describe...` we can see the event:**