Update changelog

Author: thecrypticace

CHANGELOG.md

@@ -15,6 +15,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Fix missing spaces around arithmetic operators ([#8615](https://github.com/tailwindlabs/tailwindcss/pull/8615))
 - Detect alpha value in CSS `theme()` function when using quotes ([#8625](https://github.com/tailwindlabs/tailwindcss/pull/8625))
 - Fix "Maximum call stack size exceeded" bug ([#8636](https://github.com/tailwindlabs/tailwindcss/pull/8636))
+- Allow functions returning parallel variants to mutate the container ([#8622](https://github.com/tailwindlabs/tailwindcss/pull/8622))
+- Remove text opacity CSS variables from `::marker` ([#8622](https://github.com/tailwindlabs/tailwindcss/pull/8622))
 
 ## [3.1.2] - 2022-06-10