Extend documentation to external tools such as readthedocks.io

[TheNetworkGuy]

It makes sense to replace the existing Github README documentation to something a bit more structured given the scope of this project, the amount of customization and the deployment options. I was thinking of using readthedocks to make a more structured documentation.

Now the Github README page is quite long and i'm not sure if its the best way to provide the users of all available data. It can feel overwheling and cluttered.