Is your feature request related to a problem? Please describe.
I checked the document of intensity transforms, found that we didn't add example images for transform SavitzkyGolaySmooth and RandRicianNoise:
https://github.com/Project-MONAI/MONAI/blob/dev/docs/source/transforms.rst#RandRicianNoise
https://github.com/Project-MONAI/MONAI/blob/dev/docs/source/transforms.rst#SavitzkyGolaySmooth

Would be nice to add them.