Add a Contribute section

README.rst

@@ -80,6 +80,20 @@ currently include:
 - join columns
 - columns from URL
 
+Contribute
+============
+
+Patches welcome! Source is at https://github.com/PaulMakepeace/refine-client-py
+
+Useful Tools
+------------
+
+One aspect of development is watching HTTP transactions. To that end, I found
+`Fiddler <http://www.fiddler2.com/>`_ on Windows and `HTTPScoop
+<http://www.tuffcode.com/>`_ invaluable. The latter won't URL-decode nor nicely
+format JSON but the `Online JavaScript Beautifier <http://jsbeautifier.org/>`_
+will.
+
 Credits
 =======