cupy + cucim

Hi @jni ,

if you're interested, I would offer to add a section to the [GPU chapter](https://github.com/jni/using-python-for-science/blob/main/using-python-for-science/gpu-libraries.md). E.g. [this blog post](https://biapol.github.io/blog/robert_haase/cupy_cucim/) about image processing with cupy/cucim could fit. I'm also happy to extend the section if you tell me what information might be missing.

Let me know what you think!

Cheers,
Robert

Read using-python-for-science/gpu-libraries.md and the linked CuPy/cucim blog post. Add a section covering image processing with CuPy and cucim, with its scope guided by the existing GPU chapter; the work is done when the section is integrated and the relevant information is complete.

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