gh-75510: Edit idlelib entry in doc (GH-95869)
Make section instead of subsection and revise sentence.
(cherry picked from commit 9af4aed73af0accffd26176c09aa263b68c8ca5d)
Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
diff --git a/Doc/library/idle.rst b/Doc/library/idle.rst
index 81e0182..3058bce 100644
--- a/Doc/library/idle.rst
+++ b/Doc/library/idle.rst
@@ -984,16 +984,19 @@
information. The only current default extension is zzdummy, an example
also used for testing.
+
idlelib
-^^^^^^^
+-------
.. module:: idlelib
:synopsis: Implementation package for the IDLE shell/editor.
**Source code:** :source:`Lib/idlelib`
-The Lib/idlelib package implements the IDLE application. See the top
-of this file or content listing on the left for how to use IDLE.
+--------------
+
+The Lib/idlelib package implements the IDLE application. See the rest
+of this page for how to use IDLE.
The files in idlelib are described in idlelib/README.txt. Access it
either in idlelib or click Help => About IDLE on the IDLE menu. This