updated readme file

README.md

@@ -25,15 +25,15 @@ source ~/path/to/credentials.sh
 terraform apply
 ```
 
-## Kubespray
+## Create Kubernetes Cluser
 
 - <code>cd ~/kubernetes-infra-example/ansible/group_vars/all/</code>
+- All possible group vars are in [Kubespray](https://github.com/kubernetes-sigs/kubespray) project.
 - In <code>openstack.yml</code> modify the application credentials, can be the same credentials as already created.
 
 
 #### Install Kubernetes
 Prerequisites: </br>
-- ([Kubespray](https://github.com/kubernetes-sigs/kubespray))
 ```
 cd ~/kubernetes-infra-example/ansible/01-playbook/
 ansible-galaxy install -r requirements.yml