Update README.rst: provide link to the generated pages

README.rst

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 Python training UGA 2017
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@@ -5,6 +7,9 @@ Python training UGA 2017
 
 The code of this training has been written for Python 3.
 
+Formated output of the notebooks is available here: https://python-uga.gricad-pages.univ-grenoble-alpes.fr/py-training-2017
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 To display and/or modify the presentations, use the Makefile. See::
 
   make help