[FEATURE REQUEST]: Developer Documentation

[TrulyFlawed]

Is your feature request related to a problem? Please describe.
It was really only a matter of time before I made an issue for this, but we really should have some kind of style guide to ensure that the code is consistent.

Describe the solution you'd like
Probably just a folder called "documentation" or something, with markdown files for stuff. I'll figure that out.

Describe alternatives you've considered
Perhaps using the GitHub wikis feature. Although I think that's more useful for documentation that's meant to be more "user-friendly" (ergo, users who aren't going to click on the "documentation" folder). There's also just writing out concise documentation inside of our code too, which I have begun to do, but this probably won't suffice on its own.

Additional context
Not really, there's nobody else who contributes to this project so it could be seen as "useless", but whatever.