More source links.
diff --git a/Doc/library/html.entities.rst b/Doc/library/html.entities.rst
index aa67bae..239ae50 100644
--- a/Doc/library/html.entities.rst
+++ b/Doc/library/html.entities.rst
@@ -5,6 +5,9 @@
:synopsis: Definitions of HTML general entities.
.. sectionauthor:: Fred L. Drake, Jr. <fdrake@acm.org>
+**Source code:** :source:`Lib/html/entities.py`
+
+--------------
This module defines three dictionaries, ``name2codepoint``, ``codepoint2name``,
and ``entitydefs``. ``entitydefs`` is used to provide the :attr:`entitydefs`