diff --git a/README.md b/README.md
index 52ea4f47..1bd119d8 100644
--- a/README.md
+++ b/README.md
@@ -741,8 +741,8 @@ Made with [contrib.rocks](https://contrib.rocks).
 [Youtube Playlist]: https://youtube.com/playlist?list=PLbhaS_83B97vONkOAWGJrSXWX58et9zZ2
 [Slack Group]: https://join.slack.com/t/bulletjournal1024/shared_invite/zt-fys7t9hi-ITVU5PGDen1rNRyCjdcQ2g
 [Sample Page]: https://github.com/singerdmx/flutter-quill/blob/master/example/lib/pages/home_page.dart
-[Code Introduction]: https://github.com/singerdmx/flutter-quill/blob/master/CodeIntroduction.md
+[Code Introduction]: https://github.com/singerdmx/flutter-quill/blob/master/doc/CodeIntroduction.md
 
 <hr/>
 
-[中文文档](./doc_cn.md)
+[中文文档](./doc/readme/cn.md)
diff --git a/CodeIntroduction.md b/doc/CodeIntroduction.md
similarity index 100%
rename from CodeIntroduction.md
rename to doc/CodeIntroduction.md
diff --git a/doc_cn.md b/doc/readme/cn.md
similarity index 100%
rename from doc_cn.md
rename to doc/readme/cn.md