add keywords for all nodes

tests/node_tests/tip_deconvolution.py

@@ -97,7 +97,7 @@ def test_deconv_sharpens_broadened_image():
 
     # Simulate measured image via tip dilation (Gwyddion gwy_tip_dilation):
     #   dilation_tip = tip - max(tip)   (max shifted to 0, values ≤ 0)
-    #   measured[y,x] = max_{ty,tx}[surface[y−ty, x−tx] + dilation_tip[ty,tx]]
+    #   measured[y,x] = max_{ty,tx}[surface[y-ty, x-tx] + dilation_tip[ty,tx]]
     dilation_struct = tip_data - tip_data.max()
     measured_data = grey_dilation(data, structure=dilation_struct)
     measured = make_field(data=measured_data)

tests/test_grains.py

@@ -411,7 +411,7 @@ def test_pipeline_demo_image():
         assert grain["max_height"] >= grain["mean_height"]
         assert grain["mean_height"] > 0
 
-    # Physical size sanity: equivalent diameters should be in the nm–µm range
+    # Physical size sanity: equivalent diameters should be in the nm-µm range
     diams_nm = [g["equiv_diam_m"] * 1e9 for g in table]
     print(f"  Diameters: min={min(diams_nm):.0f} nm, max={max(diams_nm):.0f} nm")
     assert all(1 < d < 2000 for d in diams_nm), \