play with docker docs need clarification

[TheBigBear]

Thanks for all the effort and the great progress.

You have 4 Dockerfiles in the git repo

Dockerfile docker/Dockerfile salt_master_docker/Dockerfile salt_master_docker/Dockerfile_stable

But if one doesn't know the saltpad setup (or docker - or both) too well, then the docs become a blurr very quickly.

Please consider mentioning clearly which Dockerfile should be used for the different sections in the doc page that talks about playing with docker.

And maybe the 'stable' file should be in salt_master_docker_stable/Dockerfile

and the devel one in salt_master_docker_devel/Dockerfile

and the old v1 one maybe v1_docker/Dcokerfile

[Lothiraldan]

Hi @TheBigBear, I have seen your PR and will try to answer your questions by creating a new PR on the Docker readme