Update readme.md

Author: edenleung

readme.md

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 # think-whoops
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 让Whoops接管ThinkPHP6异常, Whoops提供stackbased错误捕获及超美观的错误
 
+[![Latest Stable Version](https://poser.pugx.org/xiaodi/think-whoops/version)](https://packagist.org/packages/xiaodi/think-whoops)
+[![Total Downloads](https://poser.pugx.org/xiaodi/think-whoops/downloads)](https://packagist.org/packages/xiaodi/think-whoops)
+[![License](https://poser.pugx.org/xiaodi/think-whoops/license)](https://packagist.org/packages/xiaodi/think-whoops)
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+
 ## 安装
 ```php
 $ composer require xiaodi/think-whoops