Update changelog

This belongs in an added action as it’s a new feature not a bug fix

CHANGELOG.md

@@ -7,14 +7,17 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Added
+
+- Support default `font-weight`s in font size utilities ([#8763](https://github.com/tailwindlabs/tailwindcss/pull/8763))
+
 ### Fixed
 
 - Allows fallback values in plugin API helpers ([#8762](https://github.com/tailwindlabs/tailwindcss/pull/8762))
 - Fix usage of postcss.config.js in standalone CLI ([#8769](https://github.com/tailwindlabs/tailwindcss/pull/8769))
 - Fix usage of special-character prefixes ([#8772](https://github.com/tailwindlabs/tailwindcss/pull/8772))
 - Don’t prefix selectors in arbitrary variants ([#8773](https://github.com/tailwindlabs/tailwindcss/pull/8773))
 - Add support for alpha values in safe list ([#8774](https://github.com/tailwindlabs/tailwindcss/pull/8774))
-- Support default `font-weight`s in font size utilities ([#8763](https://github.com/tailwindlabs/tailwindcss/pull/8763))
 - Add more explicit types for the default theme ([#8780](https://github.com/tailwindlabs/tailwindcss/pull/8780))
 
 ## [3.1.4] - 2022-06-21