added link to wiki

This fixes #82

Author: dacoex

docs/sphinx/source/index.rst

@@ -40,6 +40,8 @@ and
 `PVSC 2015 abstract <http://energy.sandia.gov/about/publications/download-info/pvlib-python-2015/>`_ 
 (and the `notebook to reproduce the figures <http://nbviewer.ipython.org/github/pvlib/pvsc2015/blob/master/paper.ipynb>`_ therein) for more information.
 
+The wiki also has a page on `Projects and publications that use pvlib python <https://github.com/pvlib/pvlib-python/wiki/Projects-and-publications-that-use-pvlib-python>`_. for inspiration and listing of your application.
+
 Installation
 ============