update release notes

docs/ReleaseNotes.md

@@ -4,6 +4,20 @@ nav_order: 8
 ---
 # Release notes
 
+## 3.0.6
+
+### Features
+[**Issue 180**](https://github.com/viadee/vPAV/issues/180) Implementations of Camunda API are found when abstract classes are used
+
+[**Issue 172**](https://github.com/viadee/vPAV/issues/172) [**Issue 159**](https://github.com/viadee/vPAV/issues/159) Elements which reference source code can be highlighted in the frontend and contain a reference to the implementation 
+
+### Fixes
+[**Issue 177**](https://github.com/viadee/vPAV/issues/177) Custom ruleSets are no longer overwritten by the default ruleSet
+
+[**Issue 176**](https://github.com/viadee/vPAV/issues/176) vPAV properties file can be located anywhere in the project
+
+### Misc
+
 ## 3.0.5
 
 ### Features