update changelog

Author: Iwan

CHANGELOG.md

@@ -1,8 +1,10 @@
 ## Unreleased
 
-## 9.0
+* Fix parsing of first class module exprs as part of binary/ternary expr in [#256](https://github.com/rescript-lang/syntax/pull/256)
 
-* Fix parsing of poly-var typexpr consisting of one tag-spec-first in [254](https://github.com/rescript-lang/syntax/pull/254)
+## ReScript 9.0.0
+
+* Fix parsing of poly-var typexpr consisting of one tag-spec-first in [#254](https://github.com/rescript-lang/syntax/pull/254)
 * Implement new syntax for guards on pattern match cases in [#248](https://github.com/rescript-lang/syntax/pull/248)
 * Implement intelligent breaking for poly-var type expressions in [#246](https://github.com/rescript-lang/syntax/pull/246)
 * Improve indentation of fast pipe chain in let binding in [#244](https://github.com/rescript-lang/syntax/pull/244)