Prepare to release 2.2.1

Author: colinodell

CHANGELOG.md

@@ -6,6 +6,16 @@ Updates should follow the [Keep a CHANGELOG](https://keepachangelog.com/) princi
 
 ## [Unreleased][unreleased]
 
+## [2.2.1] - 2022-01-25
+
+### Fixed
+
+ - Fixed `symfony/deprecation-contracts` constraint
+
+### Removed
+
+ - Removed deprecation trigger from `MarkdownConverterInterface` to reduce noise
+
 ## [2.2.0] - 2022-01-22
 
 ### Added
@@ -385,7 +395,8 @@ No changes were introduced since the previous release.
     - Alternative 1: Use `CommonMarkConverter` or `GithubFlavoredMarkdownConverter` if you don't need to customize the environment
     - Alternative 2: Instantiate a new `Environment` and add the necessary extensions yourself
 
-[unreleased]: https://github.com/thephpleague/commonmark/compare/2.2.0...main
+[unreleased]: https://github.com/thephpleague/commonmark/compare/2.2.1...main
+[2.2.1]: https://github.com/thephpleague/commonmark/compare/2.2.0...2.2.1
 [2.2.0]: https://github.com/thephpleague/commonmark/compare/2.1.1...2.2.0
 [2.1.1]: https://github.com/thephpleague/commonmark/compare/2.0.2...2.1.1
 [2.1.0]: https://github.com/thephpleague/commonmark/compare/2.0.2...2.1.0