Apply suggestions from code review

Co-authored-by: Alexander Condello <arcondello@gmail.com>

Author: JoelPasvolsky

releasenotes/notes/feature-mimo-59c3d6d02335061c.yaml

@@ -4,5 +4,5 @@ features:
     Add ``mimo()`` function for generating a multi-input 
     multiple-output (MIMO) channel-decoding problem. 
   - |  
-    Add ``comp()`` function for generating a coordinated multi-point 
+    Add ``coordinated_multipoint()`` function for generating a coordinated multi-point 
     (CoMP) decoding problem.

tests/test_generators.py

@@ -1128,6 +1128,7 @@ def test_constraints_squares(self):
                     else:
                         self.assertEqual(term, 24)
 
+@unittest.skipUnless(_networkx, "no networkx installed")
 class TestMIMO(unittest.TestCase):
 
     def setUp(self):