Add PHP and License badges to README

Author: dereuromark

README.md

@@ -1,6 +1,8 @@
 # CakePHP Upgrade tool
 
 [![CI](https://github.com/cakephp/upgrade/actions/workflows/ci.yml/badge.svg)](https://github.com/cakephp/upgrade/actions/workflows/ci.yml)
+[![Minimum PHP Version](https://img.shields.io/badge/php-%3E%3D%208.1-8892BF.svg)](https://php.net/)
+[![License](https://poser.pugx.org/cakephp/upgrade/license.svg)](LICENSE)
 
 Upgrade tools for CakePHP meant to facilitate migrating between CakePHP 4.x
 versions, from CakePHP 4.x to CakePHP 5.x, and between CakePHP 5.x versions.