diff --git a/docs/tutorial/13-ending-notes.md b/docs/tutorial/13-ending-notes.md
index c14b09db..e3054733 100644
--- a/docs/tutorial/13-ending-notes.md
+++ b/docs/tutorial/13-ending-notes.md
@@ -1,4 +1,4 @@
----
+tktk
 title: Ending notes
 slug: ending-notes
 ---