chore: prepare for lit 2 release 0.24.0

Author: e111077

CHANGELOG.md

@@ -4,7 +4,9 @@ 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
+<!-- ## Unreleased -->
+
+## [v0.24.0] - 2021-09-20
 
 ### Changed