update CHANGELOG.md

Author: mununki

CHANGELOG.md

@@ -54,6 +54,7 @@
 - Treat await as almost-unary operator weaker than pipe so `await foo->bar` means `await (foo->bar)` https://github.com/rescript-lang/syntax/pull/711
 - Fix build error where aliasing arguments to `_` in the make function with JSX V4. https://github.com/rescript-lang/syntax/pull/720
 - Fix parsing of spread props as an expression in JSX V4 https://github.com/rescript-lang/syntax/pull/721
+- Fix dropping attributes from props in make function in JSX V4 https://github.com/rescript-lang/syntax/pull/723
 
 #### :eyeglasses: Spec Compliance