Added description of pp.py.
diff --git a/Demo/scripts/README b/Demo/scripts/README
index fe9ef51..eaac93b 100644
--- a/Demo/scripts/README
+++ b/Demo/scripts/README
@@ -26,6 +26,7 @@
objgraph.py Print object graph from nm output on a library
pdeps.py Print dependencies between Python modules
pi.py Print all digits of pi -- given enough time and memory
+pp.py Emulate the '-ae' option of Perl...
primes.py Print prime numbers
ptags.py Create vi tags file for Python modules
suff.py Sort a list of files by suffix