diff --git a/README.md b/README.md
index d3ddf27..97cea96 100644
--- a/README.md
+++ b/README.md
@@ -3,3 +3,4 @@
 
 waypoint_manager 参考  
 - https://imagingsolution.net/category/program/python/tkinter/
+- https://daeudaeu.com/tkinter-mousewheel/