move changelog to correct place

Author: zth

CHANGELOG.md

@@ -15,6 +15,7 @@
 #### :rocket: New Feature
 
 - Allow coercing polyvariants to variants when we can guarantee that the runtime representation matches. https://github.com/rescript-lang/rescript-compiler/pull/6981
+- Optimize usages of `Dict.fromArray` to emit an actual JS object literal when possible. https://github.com/rescript-lang/rescript-compiler/pull/6538
 
 #### :nail_care: Polish
 
@@ -168,7 +169,6 @@
 - Fix issue of incorrect switch cases with identical bodies when mixing object and array. https://github.com/rescript-lang/rescript-compiler/pull/6792
 - Fix formatter eats comments on the first argument of a uncurried function. https://github.com/rescript-lang/rescript-compiler/pull/6763
 - Fix formatter removes parens in pipe operator with anonymous uncurried function. https://github.com/rescript-lang/rescript-compiler/pull/6766
-- Optimize usages of `Dict.fromArray` to emit an actual JS object literal when possible. https://github.com/rescript-lang/rescript-compiler/pull/6538
 
 # 11.1.0