[low] change photo of family

[shawna-slh]

location: https://www.w3.org/WAI/tutorials/images/informative/

after

This photograph shows a happy family group.

Let's show a non-white family.

[brianelton]

@shawna-slh is there a place that we can source photos from?

[shawna-slh]

some ideas : https://www.webaxe.org/stock-photos-people-with-disabilities/

W3C has a license from some stock photos, too, if needed.

[shawna-slh]

I guess the photo doesn't need to be of a family -- just one that clearly illustrates the point.