diff --git a/pandas/core/frame.py b/pandas/core/frame.py
index 643974db5f2bf..f214e23d42b50 100644
--- a/pandas/core/frame.py
+++ b/pandas/core/frame.py
@@ -509,6 +509,10 @@
 1   foo      8
 2   bar      7
 3   bar      8
+
+Notes
+    -----
+    Please reference the :ref:`User Guide <merging.merge>` for more information.
 """