add page about peertube-ansible-compose project

Peertube-setup-with-Ansible-and-Docker-Compose.md

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+This is a project that lets you automatically install Peertube with Ansible, using docker-compose.
+
+The project is maintained by [@nutomic](https://github.com/Nutomic) and used on [peertube.social](https://peertube.social).
+
+Features:
+- automatic Let's Encrypt certificate handling via Traefik
+- file caching with nginx (to limit backend access and Peertube CPU usage)
+- email sending works out of the box
+
+Project Link:
+https://gitlab.com/Nutomic/peertube-compose/