note about gcc on macOS

1 job for edit-readme in 4 minutes and 38 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Nosetests&Examples
failed #150024
tn3
test

00:04:38

 
Name Stage Failure
failed
test Nosetests&Examples
    self.assertLess(1, closure())  # Check if initial guess is not optimal
AssertionError: 1 not less than tensor(0.8578, grad_fn=<AddBackward0>)

----------------------------------------------------------------------
Ran 173 tests in 140.077s

FAILED (failures=1)
Authenticating with credentials from /root/.docker/config.json
ERROR: Job failed: exit code 1