Add badge

README.md

@@ -12,6 +12,7 @@ dotenv-expand is your tool.
 [![BuildStatus](https://img.shields.io/travis/motdotla/dotenv-expand/master.svg?style=flat-square)](https://travis-ci.org/motdotla/dotenv-expand)
 [![NPM version](https://img.shields.io/npm/v/dotenv-expand.svg?style=flat-square)](https://www.npmjs.com/package/dotenv-expand)
 [![js-standard-style](https://img.shields.io/badge/code%20style-standard-brightgreen.svg?style=flat-square)](https://github.com/feross/standard)
+[![Featured on Openbase](https://badges.openbase.com/js/featured/dotenv-expand.svg?token=BGZJQVRDGu24cWu/F8LIrCmZvIhC1yUc03IUkk9/sUM=)](https://openbase.com/js/dotenv-expand?utm_source=embedded&utm_medium=badge&utm_campaign=rate-badge)
 
 ## Install