update changelog

Author: RobinMalfait

packages/@headlessui-tailwindcss/CHANGELOG.md

@@ -7,7 +7,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
-- Nothing yet!
+### Added
+
+- Add `not-focus-visible` variant to Tailwind plugin ([#2618](https://github.com/tailwindlabs/headlessui/pull/2618))
 
 ## [0.1.3] - 2023-04-12