- Formerly `README.md` announced there would be $ROOT but it wasn't used - start using it
- Make sure that we also describe submodule cloning in Docker `README.md` as I have already been asked by several people "why the scripts directory isn't there".
- Mention how to adapt map center coordinates as it is a FAQ
- Mention how to backup the data.
@opatut mention as discussed
when directly voluming in the json and it does not exist, docker automatically creates a directory to mount which traefik chokes on trying to access it as a file. create a sensible mount dir but configure traefik to make a file in that directory (next commit)
