Add qed.ai to /services

[MartijnR]

asked for details on service they provide

[willywutang]

Hi there MartijnR, thanks for creating this issue. How about listing this for us?

Hosting, supporting, and customization of KoBoToolbox instances including Enketo, including extensions for case management and additional security, and disciplined form design.

[MartijnR]

Thanks! Let me know if you want to change anything (or create a PR).

[willywutang]

Thanks so much!
If possible, it would be nice to add our logo. We have done the same for Enketo on our partners page.
A small square logo can be found here:
https://qed.ai/logos/qed-square/qed-square-4c/positive/qed-square.png

[MartijnR]

Yes, that sounds fine to me and makes the page more attractive.