message: Update README to include pushing custom image to openshift cluster
diff: @@ -154,6 +154,47 @@ yarn run dev
  ```
  If changes aren't detected, you might need to increase `fs.inotify.max_user_watches`. See <https://webpack.js.org/configuration/watch/#not-enough-watchers>.
  +#### Deploying a Custom Image to an OpenShift Cluster
  +
  +Once you have made changes locally, these instructions will allow you to push changes to an
  + OpenShift cluster for others to review. This involves building a local image, pushing the
  + image to an image registry, then updating the OpenShift cluster to pull the new image.
  +
  +##### Prerequisites
  +
  +1. Docker v17.05 or higher
  +2. An image registry like [quay.io](https://quay.io/signin/) or [Docker Hub](https://hub.docker.com/)
  +
  +##### Steps
  +1. Create a repository in the image registry of your choice to hold the image
  +2. Build Image `docker build -t <your-image-name> <path-to-repository>`. Here we are in the `console` directory, building from the local repository:
  + ```
  + docker build -t quay.io/myaccount/console:latest .
  + ```
  + `<path-to-repository>` can also be a URL to a Git repository.
  +3. Push image to image registry `docker push <your-image-name>`. Make sure docker is logged into your image registry! Here we are pushing to a repository named 'console' on quay.io:
  + ```
  + docker push quay.io/myaccount/console:latest
  + ```
  +4. Put the console operator in unmanaged state.
  + ```
  + oc patch consoles.operator.openshift.io cluster --patch '{ "spec": { "managementState": "Unmanaged" } }' --type=merge
  + ```
  +5. Update the console Deployment with the new image:
  + ```
  + oc set image deploy console console=quay.io/myaccount/console:latest -n openshift-console
  + ```
  +6. Wait for the changes to rollout
  + ```
  + oc rollout status -w deploy/console -n openshift-console
  + ```
  +You should now be able to see your development changes on the remote OpenShift cluster!
  +
  +When done making/pushing changes, you can put the console operator back in a managed state:
  +```
  +oc patch consoles.operator.openshift.io cluster --patch '{ "spec": { "managementState": "Managed" } }' --type=merge
  +```
  +
  ### Unit Tests
  Run all unit tests:
  