An update to the previous guide (i.e. "Boosting theory").

I go over things like track features, boosting, how the speedometer works and some important things about some useful podracers.

https://docs.google.com/document/d/1hEgwuFtRBhMPztOKtNMLyctDkq6Wjmh0cQe-1L7nETo/ Updated as of: 10 Dec 2019