renamed SimpleNet to GriddedNet, tests pass locally.

docs/ci-tutorials/fakedata.md

@@ -311,7 +311,7 @@ With the {class}`~mpol.images.ImageCube`, $u,v$ and weight distributions now in
 ```{code-cell} ipython3
 from mpol import fourier
 # will have the same shape as the uu, vv, and weight inputs
-data_noise, data_noiseless = fourier.generate_fake_data(image, uu, vv, weight)
+data_noise, data_noiseless = fourier.generate_fake_data(image_tensor_packed, coords, uu, vv, weight)
 
 print(data_noise.shape)
 print(data_noiseless.shape)