Merge pull request #10 from summerblue/patch-1

Update README.md

Author: overtrue

README.md

@@ -24,6 +24,12 @@ $ tail -f ./storage/logs/laravel.log
     [2017-09-05 14:52:14] local.DEBUG: [670μs] select * from `users` where `users`.`id` in ('1', '2', '4') and `users`.`deleted_at` is null | GET: http://laravel.app/discussions
     ...
 
+## PHP 扩展包开发
+
+> 想知道如何从零开始构建 PHP 扩展包？
+>
+> 请关注我的实战课程，我会在此课程中分享一些扩展开发经验 —— [《PHP 扩展包实战教程 - 从入门到发布》](https://learnku.com/courses/creating-package)
+
 ## License
 
-MIT
+MIT