Update changelog

Author: adamwathan

CHANGELOG.md

@@ -15,6 +15,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Add `min/max-content` values for `min/max-height` utilities ([#5729](https://github.com/tailwindlabs/tailwindcss/pull/5729))
 - Add all standard `cursor-*` values by default ([#5734](https://github.com/tailwindlabs/tailwindcss/pull/5734))
 - Add `grow-*` and `shrink-*` utilities, deprecate `flex-grow-*` and `flex-shrink-*` ([#5733](https://github.com/tailwindlabs/tailwindcss/pull/5733))
+- Add `text-decoration-color` utilities ([#5760](https://github.com/tailwindlabs/tailwindcss/pull/5760))
 
 ## [3.0.0-alpha.1] - 2021-10-01