chore: update doc

README.md

@@ -8,7 +8,6 @@
 [![Latest Stable Version](http://poser.pugx.org/jiannei/laravel-enum/v)](https://packagist.org/packages/jiannei/laravel-enum) 
 [![Total Downloads](http://poser.pugx.org/jiannei/laravel-enum/downloads)](https://packagist.org/packages/jiannei/laravel-enum)
 [![Monthly Downloads](http://poser.pugx.org/jiannei/laravel-enum/d/monthly)](https://packagist.org/packages/jiannei/laravel-enum)
-[![Latest Unstable Version](http://poser.pugx.org/jiannei/laravel-enum/v/unstable)](https://packagist.org/packages/jiannei/laravel-enum) 
 [![License](http://poser.pugx.org/jiannei/laravel-enum/license)](https://packagist.org/packages/jiannei/laravel-enum)
 
 ## 介绍
@@ -17,6 +16,8 @@
 
 php8.1 版本后内置枚举支持，更多信息可以查看：https://www.php.net/manual/zh/language.enumerations.php
 
+参与社区讨论：- [教你更优雅地写 API 之「枚举使用」](https://learnku.com/articles/53015)
+
 ## 概览
 
 - 扩展原生的 BackedEnum，支持多语言描述