Document the container registry push alongside the git remote

README.md

@@ -28,8 +28,19 @@ uv run uwudash-mk3 --reload
 ```bash
 docker build -t uwudash-mk3 .
 docker run -d -p 8000:8000 -v uwudash-data:/app/data uwudash-mk3
+
+# git.lovelynet.net also serves a container registry on the same host
+docker login https://git.lovelynet.net
+docker tag uwudash-mk3 git.lovelynet.net/benjamyn/uwudash_mk3:latest
+docker push git.lovelynet.net/benjamyn/uwudash_mk3:latest
+
+docker pull git.lovelynet.net/benjamyn/uwudash_mk3:latest   # any other machine
 ```
 
+`docker login` wants the forge's registry credentials, not the OIDC sign-in
+password - a wrong password fails with `unauthorized` at `/v2/`, and a
+successful login is remembered in `~/.docker/config.json` for later pushes.
+
 The image is two-stage: `uv build` produces the wheel from the `src/` layout, a
 clean stage installs it into `/app/.venv`, and the entrypoint is the
 `uwudash-mk3` console script. It runs as uid `10001` and binds `0.0.0.0:8000`