chore(changelog): update CHANGELOG.md

Author: ns-vasilev

CHANGELOG.md

@@ -14,7 +14,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - `1.0.x` Releases - [1.0.0](#100)
 
 ---
+## [Unreleased]
 
+### Miscellaneous Tasks
+- Fix a typo in README
+  - Contributed by [@ns-vasilev](https://github.com/ns-vasilev) in Pull Request [#48](https://github.com/space-code/flex-ui/pull/48).
 
 ## [1.5.0](https://github.com/space-code/flex-ui/releases/tag/1.5.0)
 
@@ -118,6 +122,7 @@ Released on 2025-01-07. All issues associated with this milestone can be found u
 ### New Contributors
 * @dependabot[bot] made their first contribution in [#1](https://github.com/space-code/flex-ui/pull/1)
 
+[unreleased]: https://github.com/space-code/flex-ui/compare/1.5.0..HEAD
 [1.5.0]: https://github.com/space-code/flex-ui/compare/1.4.0..1.5.0
 [1.4.0]: https://github.com/space-code/flex-ui/compare/1.3.0..1.4.0
 [1.3.0]: https://github.com/space-code/flex-ui/compare/1.2.0..1.3.0