[DOCS] Updated README.md

Signed-off-by: Torben Hansen <derhansen@gmail.com>

README.md

@@ -1,5 +1,6 @@
 [![Latest Stable Version](https://poser.pugx.org/derhansen/add_pwd_policy/v/stable)](https://packagist.org/packages/derhansen/sf_event_mgt)
 [![Monthly Downloads](https://poser.pugx.org/derhansen/add_pwd_policy/d/monthly)](https://packagist.org/packages/derhansen/add_pwd_policy)
+[![Code Quality Checks](https://github.com/derhansen/add_pwd_policy/actions/workflows/CodeQuality.yml/badge.svg)](https://github.com/derhansen/add_pwd_policy/actions/workflows/CodeQuality.yml)
 [![Project Status: Active – The project has reached a stable, usable state and is being actively developed.](https://www.repostatus.org/badges/latest/active.svg)](https://www.repostatus.org/#active)
 
 # Additional Password Policy validators for TYPO3 CMS