Fix typo

Aufree · Aufree · commit 0f6139bda3fe · 2016-04-11T22:15:34.000+08:00
diff --git a/index_zh-CN.html b/index_zh-CN.html
@@ -288,7 +288,7 @@ <h4><a name="composer" href="#composer">Composer</a> <a href="http://getcomposer
 composer update
 composer dump-autoload [--optimize]
 composer self-update
-composer require [options] [--] [vender/packages]...
+composer require [options] [--] [vendor/packages]...
               </pre>
 
               </section>
