typo in index.rst

docs/index.rst

@@ -8,7 +8,7 @@
 Welcome to ProxToolbox's documentation!
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-This collection of folders/matlab-files used to generate many if not all of 
+This collection of python/matlab-files used to generate many if not all of 
 the numerical experiments conducted in the papers in the Literature folder.  
 For a complete listing of papers with links go to `publications <http://vaopt.math.uni-goettingen.de/en/publications.php>`_.