Merge branch 'prepare-for-release' into 'master'

Prepare for release

See merge request MSO-SW/drivers/raspberry-pi/raspberry-pi-i2c-scd4x!12

Author: psachs

CHANGELOG.md

@@ -6,7 +6,7 @@ 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).
 
 
-## Unreleased
+## [0.2.2] - 2021-04-30
 
 ### Changed
 
@@ -32,6 +32,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 Initial release
 
+[0.2.2]: https://github.com/Sensirion/raspberry-pi-i2c-scd4x/compare/0.2.1...0.2.2
 [0.2.1]: https://github.com/Sensirion/raspberry-pi-i2c-scd4x/compare/0.2.0...0.2.1
 [0.2.0]: https://github.com/Sensirion/raspberry-pi-i2c-scd4x/compare/0.1.0...0.2.0
 [0.1.0]: https://github.com/Sensirion/raspberry-pi-i2c-scd4x/releases/tag/0.1.0