diff --git a/README.md b/README.md
index e0ab7fe..4123361 100644
--- a/README.md
+++ b/README.md
@@ -33,3 +33,7 @@ Todo
 
 Welcome to fork the project and pull your request!
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+[![Bitdeli Badge](https://d2weczhvl823v0.cloudfront.net/sunshine1988/algorithmjs/trend.png)](https://bitdeli.com/free "Bitdeli Badge")
+