Update README.md with working Typescript setup
Update README.md with working Typescript setup

This is because the current Typescript setup would incorrectly emit unused-variable errors (e.g: when you import interfaces):sweat_smile:.

Related to https://github.com/standard/standard/issues/1283
standard/standard,feross/standard,standard/standard,SimenB/standard,feross/standard,SimenB/standard