Vim Cheat Sheet

There's already a number of cheat sheets out there for Vim and Vimscript, but I rarely find one that works. Or at the very least an easily searchable list with specific keywords describing what a function does. So I made one. (Or at least made a reference that I'll add stuff to when I find neat tricks). This is largely meant to cover "lesser known" functions, but will cover others that may not be lesser known, purely because I felt like including it, or because it took embarassingly long for me to become aware of its existence.