What are you trying to do?
stockfish.js

Understood, but it's hard to give you directions without knowing what you are accurately try to accomplish.
Are you going to use it on a webpage served by some servers, will you run it using NodeJS?
There are examples in the repo you mentioned.

There are lots of different ways that you could accomplish this, which I think what ITABruto was getting at. You need to be a little more specific about how you are attempting to go about this, but from your post it seems like you aren't quite sure where to start. What's your level of programming experience?
I am trying to use nmrugg/stockfish.js (I believe this is what chess.com uses) on github for a side-project of mine, but I am having problems with figuring out how I can use it so tried to find some docs but after spending some time to find it I have not been able to does anyone know where it can be found?