Contributing

[Syntax]

just curious but on that site there isn't a "LUA" section in there would one of the sections in there cover lua scripting?

We don't cover the basics, no. We assume you have knowledge of Lua and Git workflow.
There's great documentation online for Lua and it's a really easy language to learn.
The standard lib is small and the syntax is simple.

http://luatut.com/introduction.html
http://www.lua.org/pil/contents.html
http://learnxinyminutes.com/docs/lua/