Add link to bounty history to readme (#4648)
Add link to bounty history to readme (#4648)

Add link to bounty history to readme
LiquidPL/osu-web,notbakaneko/osu-web,notbakaneko/osu-web,omkelderman/osu-web,LiquidPL/osu-web,LiquidPL/osu-web,nekodex/osu-web,nekodex/osu-web,notbakaneko/osu-web,nekodex/osu-web,nanaya/osu-web,notbakaneko/osu-web,nanaya/osu-web,nekodex/osu-web,nanaya/osu-web,ppy/osu-web,nanaya/osu-web,omkelderman/osu-web,ppy/osu-web,nekodex/osu-web,ppy/osu-web,LiquidPL/osu-web,nanaya/osu-web,ppy/osu-web,omkelderman/osu-web,notbakaneko/osu-web,omkelderman/osu-web,ppy/osu-web,LiquidPL/osu-web