diff --git a/README.md b/README.md
index b159610..beb36d5 100644
--- a/README.md
+++ b/README.md
@@ -20,6 +20,10 @@ first exercise (stage 1):
 LET ME COMMIT.hahaha
 
 
+
+#可以將HEAD移至NAME
+git checkout NAME
+
 discard original codes to comply with the newest version