Update changelog

Author: thecrypticace

CHANGELOG.md

@@ -19,6 +19,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Sort classes using position of first matching rule ([#11504](https://github.com/tailwindlabs/tailwindcss/pull/11504))
 - Allow variant to be an at-rule without a prelude ([#11589](https://github.com/tailwindlabs/tailwindcss/pull/11589))
 - Make PostCSS plugin async to improve performance ([#11548](https://github.com/tailwindlabs/tailwindcss/pull/11548))
+- Don’t error when a config file is missing ([f97759f](https://github.com/tailwindlabs/tailwindcss/commit/f97759f808d15ace66647b1405744fcf95a392e5))
 
 ### Added