update contributing URL

Steve Piercy

2017-06-16 c2161266fa7fdca8b6e7405de9a903c24b49ba69

update contributing URL

 docs/index.rst

@@ -95,9 +95,7 @@
  # Otherwise, HTTPS will work, using your GitHub login:
  git clone https://github.com/Pylons/pyramid.git

To find out how to become a contributor to :app:`Pyramid`, please see the
`contributor's section of the documentation
<http://docs.pylonsproject.org/en/latest/#contributing>`_.
To find out how to become a contributor to :app:`Pyramid`, please see `How to Contribute Source Code and Documentation <https://pylonsproject.org/community-how-to-contribute.html>`_.


.. _html_narrative_documentation: