docs: Updated CHANGELOG release notes (#1452)

Author: rkaraivanov

CHANGELOG.md

@@ -4,7 +4,7 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
-## [Unreleased]
+## [5.1.1] - 2024-10-28
 ### Fixed
 - Library - internal import path for styles and public exports for themes
 
@@ -602,6 +602,7 @@ Initial release of Ignite UI Web Components
 - Ripple component
 - Switch component
 
+[5.1.1]: https://github.com/IgniteUI/igniteui-webcomponents/compare/5.1.0...5.1.1
 [5.1.0]: https://github.com/IgniteUI/igniteui-webcomponents/compare/5.0.2...5.1.0
 [5.0.2]: https://github.com/IgniteUI/igniteui-webcomponents/compare/5.0.1...5.0.2
 [5.0.1]: https://github.com/IgniteUI/igniteui-webcomponents/compare/5.0.0...5.0.1