[ENHANCEMENT] Master config file and explanation

Right now, the config file in documentation and the one in example site are both different (however the one in documentation is a lot more organized)
Both of them are missing some things that the other has (it seems).
Also, many options don't have adequate explanation of their function (especially for non-developers).

Can you please make the two config sources the same, and include all site config options and add more explanations to the options?