Update CHANGELOG

Author: hailwood

CHANGELOG.md

@@ -2,9 +2,13 @@
 
 All notable changes to `laravel-backed-enums` will be documented in this file.
 
+## v2.1.1 - 2023-10-04
+
+**Full Changelog**: https://github.com/webfox/laravel-backed-enums/compare/v2.1.0...v2.1.1
+
 ## v2.1.0 - 2023-10-05
 
-- Add static `rule()` method as a shortcut for the laravel validation rule. 
+- Add static `rule()` method as a shortcut for the laravel validation rule.
 
 ## v2.0.0 - 2023-08-28