forgot to rename file in readme

README.md

@@ -17,7 +17,7 @@ terraform  apply -var-file=cluster.tfvars
 eval $(ssh-agent -s)
 ssh-add /path/to/your/private/key
 ```
-* Run `ansible-playbook -i inventory/hosts setup_vms.yml` in the ansible folder.
+* Run `ansible-playbook -i inventory/hosts setup_instance.yml` in the ansible folder.
 
 You can now ssh into your machine using `ssh ubuntu@your-floating-ip`.