Update changelog

Author: ffurrer2

CHANGELOG.md

@@ -149,7 +149,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 - Initial release of the `extract-release-notes` action
 
-[Unreleased]: https://github.com/ffurrer2/extract-release-notes/compare/v1.17.0...HEAD
+[Unreleased]: https://github.com/ffurrer2/extract-release-notes/compare/v2.0.0...HEAD
+[2.0.0]: https://github.com/ffurrer2/extract-release-notes/compare/v1.17.0...v2.0.0
 [1.17.0]: https://github.com/ffurrer2/extract-release-notes/compare/v1.16.0...v1.17.0
 [1.16.0]: https://github.com/ffurrer2/extract-release-notes/compare/v1.15.0...v1.16.0
 [1.15.0]: https://github.com/ffurrer2/extract-release-notes/compare/v1.14.0...v1.15.0