Backport source links from 3.x.
Existing links have been updated to use the new reST role. In some
files, I have also made cosmetic changes to the header.
diff --git a/Doc/library/sunau.rst b/Doc/library/sunau.rst
index 3f231b4..4bdb99b 100644
--- a/Doc/library/sunau.rst
+++ b/Doc/library/sunau.rst
@@ -1,4 +1,3 @@
-
:mod:`sunau` --- Read and write Sun AU files
============================================
@@ -6,6 +5,9 @@
:synopsis: Provide an interface to the Sun AU sound format.
.. sectionauthor:: Moshe Zadka <moshez@zadka.site.co.il>
+**Source code:** :source:`Lib/sunau.py`
+
+--------------
The :mod:`sunau` module provides a convenient interface to the Sun AU sound
format. Note that this module is interface-compatible with the modules