Update README.md

README.md

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 # MAAS-ansible-playbook
 An Ansible playbook for installing and configuring MAAS, further documentation is found [here](https://maas.io/docs/ansible-playbooks-reference).
 
-## Supported versions
+## Versions
 This playbook has been tested with Ansible version 5.10.0 and above. We recommend using the latest available stable version of Ansible (currently 7.x). The `netaddr` Python library needs to be installed on the machine on which Ansible is used; note that this is not required on remote hosts.
 
 ## Install