Requesting docker development hub for contextfree development

[js-god]

Hi;

I think by making contextfree into docker file, it would attract more code contributions

[alastairhm]

Something like this?
https://github.com/alastairhm/ContextFree/blob/master/docker_image/Dockerfile

https://hub.docker.com/repository/docker/alastairhm/contextfree/general