Merge branch '3-tag-version-21-02' into 'master'

Resolve "Tag version 21.02"

Closes #3

See merge request !6

CHANGELOG.md

@@ -5,7 +5,9 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
-## Unreleased
+## [Unreleased]
+
+## 21.02 - 2021-02-10
 
 ### Added
 
@@ -16,3 +18,5 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 ### Changed
 
 * Refractor CI to use templates. (#2)
+
+[Unreleased]: https://projects.task.gda.pl/containers/linters/markdown/compare/21.02...master