add #2998 to changelog

Author: Rich-Harris

CHANGELOG.md

@@ -5,6 +5,7 @@
 * Fix inconsistencies when setting a two-way bound `<input>` to `undefined` ([#3569](https://github.com/sveltejs/svelte/issues/3569))
 * Fix resize listening on certain older browsers ([#4752](https://github.com/sveltejs/svelte/issues/4752))
 * Add `a11y-no-onchange` warning ([#4788](https://github.com/sveltejs/svelte/pull/4788))
+* Add `muted` binding for media elements ([#2998](https://github.com/sveltejs/svelte/issues/2998))
 
 ## 3.22.3