Added missing information to CHANGELOG.md after updating AUTHORS.md

CHANGELOG.md

@@ -72,7 +72,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Harmonised both methods that check the inner temperature of thermal house against the boundaries [#880](https://github.com/ie3-institute/simona/issues/880)
 - Convert all `eval-rst` instances in rtd to myst syntax [#901](https://github.com/ie3-institute/simona/issues/901)
 - External simulation should provide information about next tick of MobSim [#776](https://github.com/ie3-institute/simona/issues/776)
-- Updated AUTHORS.md [#904](...)
+- Updated AUTHORS.md [#904](https://github.com/ie3-institute/simona/issues/904)
 
 ### Fixed
 - Removed a repeated line in the documentation of vn_simona config [#658](https://github.com/ie3-institute/simona/issues/658)