update keywords

Author: rusty1s

setup.py

@@ -35,7 +35,10 @@
     author_email='matthias.fey@tu-dortmund.de',
     url=url,
     download_url='{}/archive/{}.tar.gz'.format(url, __version__),
-    keywords=['pytorch', 'scatter', 'deep-learning'],
+    keywords=[
+        'pytorch',
+        'scatter',
+    ],
     install_requires=install_requires,
     setup_requires=setup_requires,
     tests_require=tests_require,