diff --git a/aio/content/tutorial/index.md b/aio/content/tutorial/index.md
index d724cc5302..9a02e84da5 100644
--- a/aio/content/tutorial/index.md
+++ b/aio/content/tutorial/index.md
@@ -148,4 +148,4 @@ Along the way, you'll become familiar with many of the core fundamentals of Angu
 
 Start now by building a simple [hero editor](tutorial/toh-pt1 "The Hero Editor").
 
-现在就开始构建一个简单的[英雄编辑器](tutorial/toh-pt1 "英雄编辑器")吧！
\ No newline at end of file
+现在就开始构建一个简单的[英雄编辑器](tutorial/toh-pt1 "英雄编辑器")吧！