Update CHANGELOG

Author: sprankhub

CHANGELOG.md

@@ -4,6 +4,10 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## 1.2.1 - 2021-10-28
+### Added
+- Add license
+
 ## 1.2.0 - 2021-10-27
 ### Changed
 - Refactor code