Update changelog

Author: thecrypticace

CHANGELOG.md

@@ -7,6 +7,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+- Nothing yet!
+
+## [3.0.21] - 2022-02-10
+
+### Fixed
+
 - Move prettier plugin to dev dependencies ([#7418](https://github.com/tailwindlabs/tailwindcss/pull/7418))
 
 ## [3.0.20] - 2022-02-10
@@ -1853,7 +1859,8 @@ No release notes
 
 - Everything!
 
-[unreleased]: https://github.com/tailwindlabs/tailwindcss/compare/v3.0.20...HEAD
+[unreleased]: https://github.com/tailwindlabs/tailwindcss/compare/v3.0.21...HEAD
+[3.0.21]: https://github.com/tailwindlabs/tailwindcss/compare/v3.0.20...v3.0.21
 [3.0.20]: https://github.com/tailwindlabs/tailwindcss/compare/v3.0.19...v3.0.20
 [3.0.19]: https://github.com/tailwindlabs/tailwindcss/compare/v3.0.18...v3.0.19
 [3.0.18]: https://github.com/tailwindlabs/tailwindcss/compare/v3.0.17...v3.0.18