Harmonize docstrings. Move redemo from Tools/scripts to Tools/demo. Add a README file to Tools/demo.
diff --git a/Tools/demo/beer.py b/Tools/demo/beer.py
index 56eec7b..af58380 100755
--- a/Tools/demo/beer.py
+++ b/Tools/demo/beer.py
@@ -1,6 +1,11 @@
-#! /usr/bin/env python3
+#!/usr/bin/env python3
-# By GvR, demystified after a version by Fredrik Lundh.
+"""
+A Python version of the classic "bottles of beer on the wall" programming
+example.
+
+By Guido van Rossum, demystified after a version by Fredrik Lundh.
+"""
import sys