docs: add changelog for 2.2.0

Signed-off-by: Prajwol Amatya <prajwolamatya11@gmail.com>

Author: PrajwolAmatya

CHANGELOG.md

@@ -11,6 +11,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Fixed
 
+## [2.2.0] - 2025-11-24
+
+### Added
+- Add templates for presentation viewer (https://github.com/JankariTech/web-app-presentation-viewer/pull/111)
 
 ## [2.1.0] - 2025-03-02