More acceptance criteria explanations

[jviotti]

Signed-off-by: Juan Cruz Viotti jv@jviotti.com

[michaelmior]

This sounds good to me.

[cla-assistant]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution.
_{You have signed the CLA already but the status is still pending? Let us recheck it.}