Mention issue templates in README
Mention issue templates in README

NeoAdonis/osu,2yangk23/osu,EVAST9919/osu,peppy/osu,peppy/osu,johnneijzen/osu,2yangk23/osu,NeoAdonis/osu,smoogipoo/osu,UselessToucan/osu,smoogipoo/osu,EVAST9919/osu,ppy/osu,UselessToucan/osu,peppy/osu,UselessToucan/osu,johnneijzen/osu,peppy/osu-new,ppy/osu,NeoAdonis/osu,smoogipoo/osu,ppy/osu,smoogipooo/osu