Write Documentation for the JS Lib API and the Core API

[torch2424]

Also related to #65

Since we are about to start wrapping things up. We should try to write docs for the API that we should have, and then refactor the code accordingly. That way we can get some other eyes on the API, and names and things, and then implement all at once.

The old current API, can be preserved in the index.ts, by exporting the new API with the old naming :)

Also, decided to use github wikis for docs. Since, it is probably most well know, git books are kind of confusing for me to navigate (personally), and doing the monolithic/documentation directory approach
that create-reat-app follows is kind of awkward for navigating, and sometimes finding things.

[torch2424]

This is now in the wiki 😄