added psa plug

README

@@ -70,6 +70,18 @@ optional and no GNU code is distributed with Python.  For all these
 packages, GPL-free public domain versions also exist.
 
 
+A modest plug
+=============
+
+
+Python exists, and is free, thanks to the contributed efforts of many
+people.  The PSA was created to maximize the results of those efforts,
+by helping to coordinate them.  The PSA operates web, ftp and email
+servers, organizes Python workshops, and engages in other activities
+that benefit the Python user community.  The PSA is seeking support
+for these activities.  See this URL for information on how to join:
+http://www.python.org/psa/Joining.html
+
 
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