2.0.1

Release notes:

1. No breaking changes!
2. Closed issue (#14)
3. Fixed typos (#15)
4. Updated packages (#16)
5. And improved testing workflow (fbfd614, 0935418)

New version is already published on npm
https://www.npmjs.com/package/node-w3c-validator

Big thanks @yunusga, @WezomDev and @what1s1ove