Update CHANGELOG.md

Co-authored-by: johannchopin <31794680+johannchopin@users.noreply.github.com>

Author: jakubpawlowicz

CHANGELOG.md

@@ -10,6 +10,15 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Changed
 - Updates clean-css dependency to version 5.1.5
 
+## [1.0.2] - 2021-08-05
+### Changed
+- Updates clean-css dependency to version 5.1.5
+
 ## [1.0.1] - 2021-07-29
 ### Changed
 - Updates clean-css dependency to version 5.1.4
+
+
+[Unreleased]: https://github.com/clean-css/clean-css.github.io/compare/v1.0.2...HEAD
+[1.0.2]: https://github.com/clean-css/clean-css.github.io/releases/tag/v1.0.2
+[1.0.1]: https://github.com/clean-css/clean-css.github.io/releases/tag/v1.0.1