[docs] Back to Markdown README because of anible-galaxy

README.md

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+# ansible-openwisp2
+
+[![Build Status](https://github.com/openwisp/ansible-openwisp2/workflows/Ansible%20OpenWISP2%20CI%20Build/badge.svg?branch=master)](https://github.com/openwisp/ansible-openwisp2/actions?query=workflow%3A%22Ansible+OpenWISP2+CI+Build%22)
+[![Galaxy](http://img.shields.io/badge/galaxy-openwisp.openwisp2-blue.svg?style=flat-square)](https://galaxy.ansible.com/ui/standalone/roles/openwisp/openwisp2/)
+[![Chat](https://img.shields.io/gitter/room/nwjs/nw.js.svg)](https://gitter.im/openwisp/general)
+
+Ansible role that installs the OpenWISP Server Application.
+
+Tested on **Debian (Bookworm/Bullseye)**, **Ubuntu (24/22/20 LTS)**.
+
+**Recommended minimum ansible core version**: 2.13.
+
+## Documentation
+
+- [Usage documentation](https://openwisp.io/docs/dev/ansible/)
+- [Developer documentation](https://openwisp.io/docs/dev/ansible/developer/installation.html)
+
+## Support
+
+See [OpenWISP Support Channels](http://openwisp.org/support.html).