Reformat keywords in setup.py

Author: Yuan Tang

setup.cfg

@@ -1,2 +1,5 @@
 [bdist_wheel]
-universal = 1 
+universal = 1 
+
+[metadata]
+description-file = README.rst

setup.py

@@ -25,7 +25,11 @@
           'scikit-learn'
       ],
       test_suite='test',
-      keywords=['Metric Learning', 'Large Margin Nearest Neighbor', \
-      'Information Theoretic Metric Learning', 'Sparse Determinant Metric Learning', \
-      'Least Squares Metric Learning', 'Neighborhood Components Analysis']
-      )
+      keywords=[
+          'Metric Learning', 
+          'Large Margin Nearest Neighbor',
+          'Information Theoretic Metric Learning',
+          'Sparse Determinant Metric Learning',
+          'Least Squares Metric Learning',
+          'Neighborhood Components Analysis'
+      ])