NPS friendly badge?

[Florian Mettetal]

just a simple improvement request for the readme.

Something I like a lot about commitizen is its badge to put at the top of my README.md telling all the devs on my team that its a commitizen project. Would like the same for NPS.

[Kent C. Dodds]

Sure, I'd be happy to support an official badge and mention it in the readme. How about:

[![nps friendly](https://img.shields.io/badge/nps-friendly-blue.svg?style=flat-square)](https://github.com/kentcdodds/nps)

[Kent C. Dodds]

I'm partial to the flat badge look. If you'd like to make a PR to add this to the README that'd be cool. Something like: "And look, you can add this badge to your project! 🎉"

[Florian Mettetal]

Thanks @kentcdodds , I'll do that today!