Update CHANGELOG.md

Author: cristianoc

CHANGELOG.md

@@ -15,7 +15,7 @@
 #### :bug: Bug fix
 
 - Fix node.js ExperimentalWarning. https://github.com/rescript-lang/rescript/pull/7379
-- Fix issue wiht gentype and stdlib json. https://github.com/rescript-lang/rescript/pull/7378
+- Fix issue with gentype and stdlib json. https://github.com/rescript-lang/rescript/pull/7378
 
 #### :house: Internal