diff --git a/lab1122/note.md b/lab1122/note.md
index bf27b2c34445b7ff2286acb4eab2526dd2d5aad6..adfc15d207f56523feaed441252f8a1ec7d5c93e 100644
--- a/lab1122/note.md
+++ b/lab1122/note.md
@@ -1 +1,3 @@
 1122 note
+
+## main : write in the main branch