Suggestion: Add black[d]

[beruic]

Alternatively make a new image containing black[d].
The black server is handy for using black without spawning processes for each run. Like for instance with a plugin like https://plugins.jetbrains.com/plugin/14321-blackconnect

[cytopia]

@beruic how would you connect to it inside the docker container?

[MCOfficer]

In case anyone else comes across this, just use this image instead:

docker run -p 3489 pyfound/black:latest_release blackd --bind-host 0.0.0.0 --bind-port 3489