docker-compose.yml.tmpl missing / located elsewhere

https://ralph-ng.readthedocs.io/en/stable/installation/installation/ says to look for docker-compose.yml.tmpl in https://github.com/allegro/ralph/tree/ng/contrib , but that file is not there.

There's [docker-compose.yml](https://github.com/allegro/ralph/blob/ng/docker/docker-compose.yml) in https://github.com/allegro/ralph/tree/ng/docker , but it's not quite clear whether that's the same thing.