docs: make instructions for Ansible consistent here and there

scripts/ansible/README.md

@@ -1,23 +1,28 @@
-# Ansible playbook to automatically configure environment for Acto to run a baremetal machine
+# Ansible playbook to automatically configure environment for Acto to run on a baremetal machine
+
 To run the script, you first need an `ansible_hosts` file. Each line in the file should contain
 a worker in your cluster. See https://docs.ansible.com/ansible/latest/user_guide/intro_inventory.html
 for details.
 
 An example:
+
 ```ini
 c220g5-110417.wisc.cloudlab.us ansible_connection=ssh ansible_user=tylergu ansible_port=22
 c220g5-110418.wisc.cloudlab.us ansible_connection=ssh ansible_user=tylergu ansible_port=22
 ```
 
-If you haven't installed `ansible playbook` on your control node, run
+If you haven't installed `ansible-playbook` on your control node, run
+
 ```sh
 pip3 install ansible
 ansible-galaxy collection install ansible.posix
 ansible-galaxy collection install community.general
-``` 
-
-Then just run 
 ```
-bash configure.sh
+
+Then just run
+
+```sh
+ansible-playbook -i ansible_hosts configure.yaml
 ```
+
 and the proper environment will be setup on the workers.