Improve K8s setup doc.

Author: mmahmoodictbd

kubernetes-basics/kubernetes-setup/README.asciidoc

@@ -4,18 +4,26 @@
 #### Prerequisites
 - Install link:../ansible-basics/README.asciidoc[Ansible].
 - Install VirtualBox and Vagrant.
-- Install https://github.com/ahmetb/kubectx[kubectx] to help with switching context.
-- Install https://github.com/derailed/k9s[k9s], UI to your cluster.
 
 
 #### Prepare K8s cluster with Vagrant and Ansible
-Inspired by https://kubernetes.io/blog/2019/03/15/kubernetes-setup-using-ansible-and-vagrant/
+```
+# Inspired by https://kubernetes.io/blog/2019/03/15/kubernetes-setup-using-ansible-and-vagrant/
+$ vagrant up
+$ vagrant status
+
+Current machine states:
+
+k8s-master                running (virtualbox)
+node-1                    running (virtualbox)
+node-2                    running (virtualbox)
+```
 
 
 #### Configure kubectl in your machine
 ```
 # Extract kubecofig from master node
-vagrant ssh k8s-master -c "sudo cat /etc/kubernetes/admin.conf" > kubeconf
+$ vagrant ssh k8s-master -c "sudo cat /etc/kubernetes/admin.conf" > kubeconf
 
 # Add kubeconf path to $PATH
 # Note: KUBECONFIG only exposed to current terminal, to make it permanent add it to ~/.bashrc or /~.zshrc.