Merge pull request #1853 from harikrishnana2021/patch-1

Update README.md

README.md

@@ -14,6 +14,7 @@
 [![GitHub Stars](https://img.shields.io/github/stars/unoplatform/uno?label=github%20stars)](https://github.com/unoplatform/uno/stargazers/)
 [![NuGet Downloads](https://img.shields.io/nuget/dt/uno.ui.svg)](https://www.nuget.org/packages/uno.ui)
 [![All Contributors](https://img.shields.io/badge/all_contributors-60-orange.svg?style=flat-square)](#contributors)
+[![PRs Welcome](https://img.shields.io/badge/PRs-welcome-brightgreen.svg?style=flat-square)](https://github.com/unoplatform/uno/blob/master/CONTRIBUTING.md)
 
 # What is the Uno Platform