diff --git a/scripts/write_file_msg3.py b/scripts/write_file_msg3.py
index c9313f1..88a5426 100644
--- a/scripts/write_file_msg3.py
+++ b/scripts/write_file_msg3.py
@@ -1,3 +1,5 @@
+# https://copilot.microsoft.com/shares/66FJPLCfsY7iBHE3pk9T6
+
 import os
 import readline
 import argparse