diff --git a/README.md b/README.md
index 8fb0fec..56e04c8 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,6 @@
 # learn_dl
 Deep learning algorithms source code for beginners
+Refactor the source code with Python3
+
+# artical link:
+https://www.zybuluo.com/hanbingtao/note/448086