update references

Author: Primebrook

CHANGELOG.md

@@ -50,7 +50,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Added
 Initial Release: Introduced Exstatic, a statistical distribution library for Elixir with native Rust implementations.
 
-[Unreleased]: https://github.com/Intellection/exstatic/compare/v0.1.3...HEAD
+[Unreleased]: https://github.com/Intellection/exstatic/compare/v0.2.0...HEAD
+[v0.2.0]: https://github.com/Intellection/exstatic/compare/v0.2.0...v0.1.3
 [v0.1.3]: https://github.com/Intellection/exstatic/compare/v0.1.3...v0.1.2
 [v0.1.2]: https://github.com/Intellection/exstatic/compare/v0.1.2...v0.1.1
 [v0.1.1]: https://github.com/Intellection/exstatic/compare/v0.1.1...v0.1.0