Improved openshift, docker, ansible references (#12201)

* Fixed Openshift -> OpenShift

* Fixed ansible -> Ansible

* Fixed docker -> Docker

content/en/docs/tasks/administer-cluster/kubeadm/kubeadm-upgrade-ha-1-12.md

@@ -143,7 +143,7 @@ Open the file in an editor and replace the following values for `ClusterConfigur
 
 You must also modify the `ClusterStatus` to add a mapping for the current host under apiEndpoints.
 
-Add an annotation for the cri-socket to the current node, for example to use docker:
+Add an annotation for the cri-socket to the current node, for example to use Docker:
 
 ```shell
 kubectl annotate node <nodename> kubeadm.alpha.kubernetes.io/cri-socket=/var/run/dockershim.sock

content/en/docs/tasks/configure-pod-container/translate-compose-kubernetes.md

@@ -297,7 +297,7 @@ INFO OpenShift file "foo-buildconfig.yaml" created
 ```
 
 {{< note >}}
-If you are manually pushing the Openshift artifacts using ``oc create -f``, you need to ensure that you push the imagestream artifact before the buildconfig artifact, to workaround this Openshift issue: https://github.com/openshift/origin/issues/4518 .
+If you are manually pushing the OpenShift artifacts using ``oc create -f``, you need to ensure that you push the imagestream artifact before the buildconfig artifact, to workaround this OpenShift issue: https://github.com/openshift/origin/issues/4518 .
 {{< /note >}}
 
 ## `kompose up`

content/en/docs/tasks/debug-application-cluster/monitor-node-health.md

@@ -88,7 +88,7 @@ Just create `node-problem-detector.yaml`, and put it under the addon pods direct
 ## Overwrite the Configuration
 
 The [default configuration](https://github.com/kubernetes/node-problem-detector/tree/v0.1/config)
-is embedded when building the docker image of node problem detector.
+is embedded when building the Docker image of node problem detector.
 
 However, you can use [ConfigMap](/docs/tasks/configure-pod-container/configure-pod-configmap/) to overwrite it
 following the steps: