Update CONTRIBUTING.md
Update CONTRIBUTING.md
LucianoPAlmeida/SwifterSwift,SwifterSwift/SwifterSwift,sachinvas/Swifter,tache/SwifterSwift,LucianoPAlmeida/SwifterSwift,SD10/SwifterSwift,sachinvas/Swifter,SD10/SwifterSwift,SwifterSwift/SwifterSwift,tache/SwifterSwift,omaralbeik/SwifterSwift,SD10/SwifterSwift,omaralbeik/SwifterSwift,SwifterSwift/SwifterSwift