fixed test description

Author: paavalipopov

mne/viz/tests/test_connectivity_circle.py

@@ -16,7 +16,7 @@ def test_plot_connectivity_circle_label_orientation():
     [0, 90) range, incorrectly adding 180 degrees to those labels and setting
     ha='right', which caused them to point inward instead of outward.
     """
-    # 8 nodes → uniform angles: 0, 45, 90, 135, 180, 225, 270, 315 degrees.
+    # 9 nodes → uniform angles: 0, 40, 80, 120, 160, 200, 240, 280, 320 degrees.
     # This guarantees coverage of all four quadrants, including the previously
     # broken 0–90 range (nodes n0 at 0° and n1 at 45°).
     n_nodes = 9