Update koans/about_tuples.py

Co-authored-by: Hugo van Kemenade <hugovk@users.noreply.github.com>

Author: ciceropablo

koans/about_tuples.py

@@ -47,7 +47,7 @@ def test_tuple_constructor_can_be_surprising(self):
 
     def test_creating_empty_tuples(self):
         self.assertEqual(__ , ())
-        self.assertEqual(__ , tuple()) # Sometimes less confusing
+        self.assertEqual(__ , tuple())  # Sometimes less confusing
 
     def test_tuples_can_be_embedded(self):
         lat = (37, 14, 6, 'N')