Update READEM.md

projects/docker/README.md

@@ -129,7 +129,7 @@ $ DOCKER_BUILDKIT=1 docker build -f docker/Dockerfile --build-arg MMCIF_USER_ID=
 $
 ```
 
-For working on a translation script, it is convenient to mount the complete Git repository when running the Docker container interactively. This makes sure `pyproject.toml` is available from the repository root to `black` and `pylint`:
+For working on a translation script, it is convenient to mount the complete Git repository when running the Docker container interactively. This makes sure [`pyproject.toml`](../pyproject.toml) is available from the repository root to `black` and `pylint`:
 
 ```terminal
 $ touch .history