Demonstrate `py --list` in the quickstart section of the Windows doc page (GH-29383)

diff --git a/Doc/using/windows.rst b/Doc/using/windows.rst
index 7e7be63d7da39816f62b75a078c2c1ba3777236e..83eee281d4e5c829921199a9827cb679a2be2d1a 100644 (file)
--- a/Doc/using/windows.rst
+++ b/Doc/using/windows.rst
@@ -714,6 +714,12 @@ If you see the following error, you do not have the launcher installed:
 Per-user installations of Python do not add the launcher to :envvar:`PATH`
 unless the option was selected on installation.
 
+::
+
+  py --list
+
+You should see the currently installed versions of Python.
+
 Virtual environments
 ^^^^^^^^^^^^^^^^^^^^