diff --git a/12-Cotrain/README.md b/12-Cotrain/README.md
index 3e8b2b3..ca0a293 100644
--- a/12-Cotrain/README.md
+++ b/12-Cotrain/README.md
@@ -1,5 +1,5 @@
 # CoTrain - Collaborative AI Training Platform on Aptos
-
+see url:  https://github.com/eclouder/Cotrain
 <div align="center">
   <img src="https://img.shields.io/badge/TypeScript-007ACC?style=for-the-badge&logo=typescript&logoColor=white" alt="TypeScript" />
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