fixed changelog

Author: Kevin-Smith77

CHANGELOG.md

@@ -2,8 +2,7 @@
 
 ## [Unreleased]
 - [ENH] Undeprecate `select_columns` and `select_rows` - Issue #1514 @samukweku
-- [ENH] Fix `clean_names` to match R janitor - Issue #1257
-@Kevin-Smith77
+- [ENH] `clean_names()` now replaces `@` with `_` when between word characters - Issue #1257 @Kevin-Smith77
 
 ## [v0.32.2] - 2025-12-06