fix doc

JimChenWYU · JimChenWYU · commit 2df9f02f7605 · 2020-05-17T17:08:29.000+08:00
diff --git a/README.md b/README.md
@@ -6,7 +6,7 @@
 ## Installing
 
 ```shell
-$ composer require aliyun/acm -vvv
+$ composer require jimchen/aliyun-acm -vvv
 ```
 
 ## Usage
