This is the master branch. The master branch is forked from upstream and is unmaintained. Do look at other branches for the stuff you want.
- 9.0 and related
This is the Git repo of the official Docker image for Odoo. See the Hub page for the full readme on how to use the Docker image and for information regarding contributing and issues.
The full readme is generated over in docker-library/docs, specifically in docker-library/docs/odoo.