chore: update CHANGELOG

Closes #87

Signed-off-by: Pierre-Yves Lapersonne <pierreyves.lapersonne@orange.com>

CHANGELOG.md

@@ -10,6 +10,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Changed
 
+- [Library] Update value of opacity raw token "opacity800" from 0.88 to 0.80 ([#87](https://github.com/Orange-OpenSource/ouds-ios/issues/87))
+- [Library] Add missing unit tests for opacity raw tokens
+
 ### Fixed
 
 ## [0.1.0](https://github.com/Orange-OpenSource/ouds-ios/compare/0.0.0...0.1.0) - 2024-08-08