Update README.md

README.md

 # CityDoctor2
 
-[![pipeline status](https://transfer.hft-stuttgart.de/gitlab/betzms/citydoctor2/badges/master/pipeline.svg)](https://transfer.hft-stuttgart.de/gitlab/betzms/citydoctor2/-/commits/master) ![Maintenance Level: Actively Developed](/CityDoctorParent/resources/Badges/MaintenanceLevel_ActivelyDeveloped.svg)
+[![pipeline status](https://transfer.hft-stuttgart.de/gitlab/betzms/citydoctor2/badges/master/pipeline.svg)](https://transfer.hft-stuttgart.de/gitlab/betzms/citydoctor2/-/commits/master) [![Latest Release](https://transfer.hft-stuttgart.de/gitlab/citydoctor/citydoctor2/-/badges/release.svg)](https://transfer.hft-stuttgart.de/gitlab/citydoctor/citydoctor2/-/releases)
 
 CityDoctor2 is a Java program for validating CityGML files. It checks whether certain criteria for e.g. geometries are met and outputs a report on the results.