Improve Changelog for v2.4.0

CHANGELOG.md

@@ -6,6 +6,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 ## [2.4.0] - 2024-04-03
 - Add an extension to register the `IIdempotencyOptions` that will enable the use of the `[Idempotent(UseIdempotencyOption = true)]` option. In this way, the attribute will use the predefined `IIdempotencyOptions`.
+- Thank you, [@Jevvry](https://github.com/Jevvry), for your time and implementation. This was an excellent idea ([#68](https://github.com/ikyriak/IdempotentAPI/issues/68)) 🙏💪.
     ```c#
     // Register the Core service and the `IIdempotencyOptions`.
     services.AddIdempotentAPI(idempotencyOptions);