chore(changelog): update CHANGELOG.md

Author: ns-vasilev

CHANGELOG.md

@@ -18,6 +18,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Safely handle UInt64 overflow and standardize max interval unit
   - Fixed by [@ns-vasilev](https://github.com/ns-vasilev) in Pull Request [#43](https://github.com/space-code/typhoon/pull/43).
 
+### Documentation
+- Add DocC documentation
+  - Documented by [@ns-vasilev](https://github.com/ns-vasilev) in Pull Request [#44](https://github.com/space-code/typhoon/pull/44).
+
 ### Features
 - Add release workflow for GitHub Actions
   - Implemented by [@ns-vasilev](https://github.com/ns-vasilev) in Pull Request [#38](https://github.com/space-code/typhoon/pull/38).