Update README.md

Author: Shishamou

README.md

@@ -14,11 +14,10 @@
 
 ## Installation | 安裝
 
-此套件尚未發布到 **Packagist** 需透過下列方法安裝：
+執行下列命令透過 composer 引入到你的 Laravel 專案:
 
 ```bash
-composer config repositories.a2workspace/laravel-stubs vcs https://github.com/A2Workspace/laravel-stubs.git
-composer require "a2workspace/laravel-stubs:*"
+composer require a2workspace/laravel-stubs
 ```
 
 接著使用 `vendor:publish` 命令生成配置文件與 `resources/stubs` 資料夾: