Mention numpy in the docs?

[cdeil]

I'm new to Pillow, and was trying to convert data from and to Numpy arrays.

Currently searching for numpy in the Pillow docs doesn't give a single result:
http://pillow.readthedocs.io/en/4.1.x/search.html?q=numpy&check_keywords=yes&area=default

With Google I found https://stackoverflow.com/a/384926/498873 which points to http://effbot.org/zone/pil-changes-116.htm which gives what I think is the way to do it now:

i = Image.open('lena.jpg')
a = numpy.asarray(i) # a is readonly
i = Image.fromarray(a)

Is it worth adding that info in a small section "converting to / from Numpy arrays" somewhere in the Pillow docs?