Update xmldoc to be more descriptive of single/dual stages
Update xmldoc to be more descriptive of single/dual stages


UselessToucan/osu,johnneijzen/osu,johnneijzen/osu,smoogipooo/osu,smoogipoo/osu,EVAST9919/osu,naoey/osu,DrabWeb/osu,DrabWeb/osu,ppy/osu,ppy/osu,NeoAdonis/osu,DrabWeb/osu,peppy/osu,smoogipoo/osu,UselessToucan/osu,peppy/osu,Frontear/osuKyzer,smoogipoo/osu,ppy/osu,peppy/osu,EVAST9919/osu,ZLima12/osu,2yangk23/osu,NeoAdonis/osu,peppy/osu-new,Nabile-Rahmani/osu,naoey/osu,UselessToucan/osu,ZLima12/osu,2yangk23/osu,NeoAdonis/osu,naoey/osu