Use non registry models

[JasonW25]

To save anyone else the huge annoyance of trying to figure out how to run different models when using the docker container:

Fork the registry-tabby repo.

When you launch docker tabby container and want to use your chat model or something:

--chat-model github_user_name/model_name

Obviously replace github_user_name with your username.

You will have to add your model to the models.json in the repo.

Hopefully I saved you hours of bashing your head against the wall.