Fix Yt::Collection in documentation
Fix Yt::Collection in documentation

It’s supposed to be Yt::Collections instead

mhui/yt,bohdan-malets/yt,shredder-rull/yt,amalagaura/yt,hellaxe/yt,jacknguyen/yt,Vydia/yt,Fullscreen/yt,claudiofullscreen/yt