Add Promise to `package.json`
Add Promise to `package.json`

Lucsanszky/gym-http-api,Lucsanszky/gym-http-api,Lucsanszky/gym-http-api,Lucsanszky/gym-http-api,Lucsanszky/gym-http-api,Lucsanszky/gym-http-api,Lucsanszky/gym-http-api,Lucsanszky/gym-http-api,Lucsanszky/gym-http-api