quick README update
quick README update

djnivek/JSONJoy-Swift,djnivek/JSONJoy-Swift,iChernov/JSONJoy-Swift,daltoniam/JSONJoy-Swift,gpichot/JSONJoy-Swift,gpichot/JSONJoy-Swift,ceosilvajr/JSONJoy-Swift,djnivek/JSONJoy-Swift,iChernov/JSONJoy-Swift,ceosilvajr/JSONJoy-Swift,gpichot/JSONJoy-Swift,ceosilvajr/JSONJoy-Swift,daltoniam/JSONJoy-Swift