Adds downloads badge

Author: raphaelstolt

README.md

@@ -3,6 +3,7 @@
 ![Test Status](https://github.com/raphaelstolt/lean-package-validator/workflows/test/badge.svg)
 [![Version](http://img.shields.io/packagist/v/stolt/lean-package-validator.svg?style=flat)](https://packagist.org/packages/stolt/lean-package-validator)
 ![PHP Version](https://img.shields.io/badge/php-8.1+-ff69b4.svg)
+![Downloads](https://img.shields.io/packagist/dt/stolt/lean-package-validator)
 [![composer.lock available](https://poser.pugx.org/stolt/lean-package-validator/composerlock)](https://packagist.org/packages/stolt/lean-package-validator)
 [![PDS Skeleton](https://img.shields.io/badge/pds-skeleton-blue.svg?style=flat)](https://github.com/php-pds/skeleton)
 ![llms.txt](https://img.shields.io/badge/llms.txt-available-blue.svg?style=flat)