更新 README。

Author: pardnchiu

README.md

@@ -2,6 +2,12 @@
 
 > PDPHP\Async is a PHP library using ReactPHP to perform asynchronous tasks, supporting task dependency handling and topological sorting.
 
+![tag](https://img.shields.io/badge/tag-PHP%20Library-bb4444) 
+![size](https://img.shields.io/github/size/pardnchiu/PHPAsync/src/Async.php)<br>
+![license](https://img.shields.io/packagist/l/pardnchiu/async)
+![version](https://img.shields.io/packagist/v/pardnchiu/async)
+![download](https://img.shields.io/packagist/dm/pardnchiu/async)
+
 ## Features
 - Asynchronous Task Execution
 - Handling of Task Dependencies