update changelog

Author: RobinMalfait

CHANGELOG.md

@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+- Nothing yet!
+
+## [3.0.3] - 2021-12-15
+
 ### Added
 
 - Warn about invalid globs in `content` ([#6449](https://github.com/tailwindlabs/tailwindcss/pull/6449))
@@ -1706,7 +1710,8 @@ No release notes
 
 - Everything!
 
-[unreleased]: https://github.com/tailwindlabs/tailwindcss/compare/v3.0.2...HEAD
+[unreleased]: https://github.com/tailwindlabs/tailwindcss/compare/v3.0.3...HEAD
+[3.0.3]: https://github.com/tailwindlabs/tailwindcss/compare/v3.0.2...v3.0.3
 [3.0.2]: https://github.com/tailwindlabs/tailwindcss/compare/v3.0.1...v3.0.2
 [3.0.1]: https://github.com/tailwindlabs/tailwindcss/compare/v3.0.0...v3.0.1
 [3.0.0]: https://github.com/tailwindlabs/tailwindcss/compare/v3.0.0-alpha.2...v3.0.0