Closes #11710: create "landing pages" (/library/package.html) for those packages that have no documented content themselves, e.g. "urllib" or "http".
diff --git a/Doc/library/html.rst b/Doc/library/html.rst
index 3ad1c0c..1107ca9 100644
--- a/Doc/library/html.rst
+++ b/Doc/library/html.rst
@@ -19,3 +19,10 @@
attribute value delimited by quotes, as in ``<a href="...">``.
.. versionadded:: 3.2
+
+--------------
+
+Submodules in the ``html`` package are:
+
+* :mod:`html.parser` -- HTML/XHTML parser with lenient parsing mode
+* :mod:`html.entities` -- HTML entity definitions