I've been playing urgot a lot and I'm on a 7 game winning streak with him, so I was watching some YouTube videos and I saw some where his q had amazing range so its obvious there was a nerf so I was wondering what were the full details of the nerf, and if anybody can link me to it.

Google is your friend. Try searching for "Urgot patch notes"

Why are you looking for them? Going back and seeing how powerful someone was before you started playing them isn't going to make you better. (If it's purely out of curiosity that's fine, I just want to make sure you're not expecting anything. )

(Also, http://leagueoflegends.wikia.com/wiki/Urgot/Background scroll down to Patch History.)