Add Packagist badges (#1)

- Add Latest Stable Version badge
- Add Total Downloads badge

Author: dereuromark

README.md

@@ -2,7 +2,9 @@
 
 [![CI](https://img.shields.io/github/actions/workflow/status/php-collective/djot-php/ci.yml?branch=master&style=flat-square)](https://github.com/php-collective/djot-php/actions)
 [![codecov](https://img.shields.io/codecov/c/github/php-collective/djot-php?style=flat-square)](https://codecov.io/gh/php-collective/djot-php)
-[![PHPStan](https://img.shields.io/badge/PHPStan-level%208-brightgreen.svg?style=flat)](https://phpstan.org/)
+[![Latest Stable Version](https://img.shields.io/packagist/v/php-collective/djot?style=flat-square)](https://packagist.org/packages/php-collective/djot)
+[![Total Downloads](https://img.shields.io/packagist/dt/php-collective/djot?style=flat-square)](https://packagist.org/packages/php-collective/djot)
+[![PHPStan](https://img.shields.io/badge/PHPStan-level%208-brightgreen.svg?style=flat-square)](https://phpstan.org/)
 [![PHP Version](https://img.shields.io/badge/php-%3E%3D8.2-8892BF.svg?style=flat-square)](https://php.net)
 [![Software License](https://img.shields.io/badge/license-MIT-green.svg?style=flat-square)](LICENSE)