Fixed docs in 'game.rs'
Fixed docs in 'game.rs'

tempbottle/piston,KevinFrans3/piston,PistonDevelopers/piston,caldwell/piston,mitchmindtree/piston,PistonDevelopers/piston,getynge/piston,axelmagn/piston,placrosse/piston,oldmanmike/piston,bvssvni/piston,Potpourri/piston,bvssvni/piston