Update readme to include link to changelogs

readme.md

@@ -34,6 +34,12 @@ If you want to run LEAF-Writer for development, do the following:
 3. Removed Google Analytics
 4. [GND](https://gnd.network/Webs/gnd/DE/Home/home_node.html) as data source for annotation / entity resolution
 
+## Changelog
+
+A detailed Changelog is available in the project wiki for both the main/stable and the dev version:
+- [Changelog main](https://code.fbi.h-da.de/leaf-writer-x/leafwriter-x/-/wikis/Changelog-main-english)
+- [Changelog dev](https://code.fbi.h-da.de/leaf-writer-x/leafwriter-x/-/wikis/Changelog-dev-english)
+
 ## Troubleshooting
 
 - Description: When deploying the project and you run into something like: `FATAL ERROR: CALL_AND_RETRY_LAST Allocation failed - JavaScript heap out of memory`