bump to v5.0.0 for release
bump to v5.0.0 for release

offslinker/foodcritic,pkang/foodcritic,clintoncwolfe/foodcritic,tas50/foodcritic,akihiro17/foodcritic,Foodcritic/foodcritic,acrmp/foodcritic,chazzly/foodcritic,nathenharvey/foodcritic