Adding badge

Author: guillaumebriday

README.md

@@ -2,6 +2,7 @@
 
 [![Donate](https://img.shields.io/badge/Donate-PayPal-green.svg)](https://www.paypal.me/guillaumebriday)
 [![](https://img.shields.io/npm/dt/json-api-response-converter.svg)](https://www.npmjs.com/package/json-api-response-converter)
+[![](https://img.shields.io/npm/bt/json-api-response-converter.svg)](https://www.npmjs.com/package/json-api-response-converter)
 [![](https://img.shields.io/npm/v/json-api-response-converter.svg)](https://www.npmjs.com/package/json-api-response-converter)
 [![](https://img.shields.io/github/license/guillaumebriday/json-api-response-converter.svg)](https://github.com/guillaumebriday/json-api-response-converter)