Improve Documentation

First of all, thanks for providing the module.

I just installed this module on a test instance, and was looking on how to implement it with overrides in the settings files. The current documentation only covers the 6.x and 7.x versions. I was able to find what I needed in the readme file, but that, admittedly, isn't the most straightforward way for users to find this information.

I would have updated the information myself, but seen warnings that this module's documentation needs to be ported to the new system. I could even put in some time, if I'm shown how the new documentation can be set up.