docs: Fix badges

Author: Stephan Wentz

README.md

@@ -1,5 +1,11 @@
 # brainbits Functional Test Helpers
 
+[![Latest Version](https://img.shields.io/github/release/brainbits/functional-test-helpers.svg?style=flat-square)](https://github.com/brainbits/functional-test-helpers/releases)
+[![Software License](https://img.shields.io/badge/license-MIT-brightgreen.svg?style=flat-square)](LICENSE)
+[![Build Status](https://img.shields.io/github/check-runs/brainbits/functional-test-helpers/main)](https://github.com/brainbits/functional-test-helpers/actions)
+[![Coverage Status](https://img.shields.io/codecov/c/github/brainbits/functional-test-helpers)](https://app.codecov.io/gh/brainbits/functional-test-helpers)
+[![Total Downloads](https://img.shields.io/packagist/dt/brainbits/functional-test-helpers.svg?style=flat-square)](https://packagist.org/packages/brainbits/functional-test-helpers)
+
 A collection of test helper traits for symfony projects. 
 Please look at the respective READMEs for details.