Update python-humble-bundle.rst

Author: amitsaha

content/python-humble-bundle.rst

@@ -12,15 +12,15 @@ Of course, you get No Starch Press's other excellent Python books as part of the
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    :alt: Humble Bundle
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 Your purchases will help support the No Starch Foundation and Python Software Foundation.
 
 
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    :alt: Humble Bundle
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 Get the bundle `here <https://www.humblebundle.com/books/python-programming-no-starch-books>`__.