Issue #22558: Add remaining doc links to source code for Python-coded modules.
Reformat header above separator line (added if missing) to a common format.
Patch by Yoni Lavi.
diff --git a/Doc/library/email.charset.rst b/Doc/library/email.charset.rst
index c0fab8f..161d86a 100644
--- a/Doc/library/email.charset.rst
+++ b/Doc/library/email.charset.rst
@@ -4,6 +4,9 @@
.. module:: email.charset
:synopsis: Character Sets
+**Source code:** :source:`Lib/email/charset.py`
+
+--------------
This module provides a class :class:`Charset` for representing character sets
and character set conversions in email messages, as well as a character set