Update Readme.md

Readme.md

@@ -18,6 +18,7 @@
 <a href="https://gitter.im/nestjs/nestjs?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=body_badge"><img src="https://badges.gitter.im/nestjs/nestjs.svg" alt="Gitter" /></a>
 <a href="https://opencollective.com/nest#backer"><img src="https://opencollective.com/nest/backers/badge.svg" alt="Backers on Open Collective" /></a>
 <a href="https://opencollective.com/nest#sponsor"><img src="https://opencollective.com/nest/sponsors/badge.svg" alt="Sponsors on Open Collective" /></a>
+  <a href="https://paypal.me/kamilmysliwiec"><img src="https://img.shields.io/badge/Donate-PayPal-4343ce.svg"/></a>
 <img src="https://img.shields.io/badge/👌-Production Ready-00ddcc.svg"/>
   <a href="https://twitter.com/nestframework"><img src="https://img.shields.io/twitter/follow/nestframework.svg?style=social&label=Follow"></a>
 </p>