Merge branch 'feature/mx-1347-cruft-template' of https://github.com/r…

…obert-koch-institut/mex-model into feature/mx-1347-cruft-template

CHANGELOG.md

@@ -9,8 +9,15 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 
+- pull request template
+- cve scan workflow
+- CHANGELOG file
+- cruft template link
+
 ### Changes
 
+- harmonized boilerplate
+
 ### Deprecated
 
 ### Removed