[ci skip] Update CHANGELOG.md

yhatt · web-flow · commit d0cee502f278 · 2023-08-14T20:40:54.000+09:00
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## [Unreleased]
 
+### Added
+
+- Allow async `render()` in the custom engine ([#540](https://github.com/marp-team/marp-cli/pull/540) by [@GuillaumeDesforges](https://github.com/GuillaumeDesforges))
+
 ## v3.2.0 - 2023-08-04
 
 ### Changed
