Alamo GT Update of Nids and Knights to the FAQ

A few last minute updates including the contentions Tyranid Warriors ruling. And simple fixes for the event.

https://docs.google.com/document/d/e/2PACX-1vQxxV8r0xM5ElAyNXcZdOQthYYtvcXZrauWZj-q3arEfP927F8Baz0AxyWjT_bs4RnhisrSAMeVkxFS/pub