diff --git a/pattern/README.md b/pattern/README.md
index da033f1..5cf49ef 100644
--- a/pattern/README.md
+++ b/pattern/README.md
@@ -2,8 +2,12 @@
 
 ## 001-words.py
 
+[source](001-words.py)
+
 [![Words](https://img.youtube.com/vi/HLSHaJuNtBw/hqdefault.jpg)](https://www.youtube.com/watch?v=HLSHaJuNtBw)
 
 ## 002-relationship.py
 
+[source](002-relationship.py)
+
 [![Relationship](https://img.youtube.com/vi/f2Q1OI_SQZo/hqdefault.jpg)](https://www.youtube.com/watch?v=f2Q1OI_SQZo)