Update to fooof-tools link.

Author: TomDonoghue

doc/conf.py

@@ -117,7 +117,7 @@
         ("Tutorial", "auto_tutorials/index"),
         ("Examples", "auto_examples/index"),
         ("Index", "contents"),
-        ("GitHub", "https://github.com/voytekresearch/fooof", True)
+        ("GitHub", "https://github.com/fooof-tools/fooof", True)
     ],
     'bootswatch_theme': "flatly",
 
@@ -219,4 +219,4 @@
         'numpy': 'http://docs.scipy.org/doc/numpy-1.9.1',
         'scipy': 'http://docs.scipy.org/doc/scipy-0.17.0/reference'
         }
-}
+}