Merge pull request #1 from rpitonak/update-readme

Update README

README.md

@@ -3,9 +3,9 @@
 This repo is used for running OpenShift4 with CodeReady Containers on macOS.
 Later on, I would like to enhance it also for Linux.
 
-## First of all install all prerequisities
+## Install all prerequisites (Fedora)
 
-You can do that, by a command:
+You can do that, with a command:
 
 ```bash
 ansible-playbook -vv -c local -i localhost, ./install-rpm-packages.yaml
@@ -14,5 +14,29 @@ ansible-playbook -vv -c local -i localhost, ./install-rpm-packages.yaml
 ## Setup and start CRC for running OpenShift cluster
 
 ```bash
-ansible-playbook -vv -c local -i localhost, ./openshift4-installer.yaml
+make run_openshift
 ```
+
+**Note: The initial setup can take more than 30 minutes.**
+
+## Stop OpenShift cluster
+
+```bash
+make stop_openshift
+```
+
+
+## Troubleshooting
+
+**Missing pull-secret**
+```
+The task includes an option with an undefined variable. The error was: 'pull_secret' is undefined
+```
+
+**Solution**
+
+Log-in with your Red Hat account and download a [pull-secret](https://cloud.redhat.com/openshift/install/metal/user-provisioned).
+
+## Resources
+
+* Red Hat developer portal blog post: [Red Hat OpenShift 4 on your laptop: Introducing Red Hat CodeReady Containers](https://developers.redhat.com/blog/2019/09/05/red-hat-openshift-4-on-your-laptop-introducing-red-hat-codeready-containers/)