Improve documentation with FAQ on A/G framework issues

[vi-enne]

Hi, I notice that a big part of the opened issues are relative to the A/G framework and not specifically to the Immuni App. (The last one as an example is #119)

While I understand these issues are problematic also for Immuni, the developers have no control over them: the app is thought to be build around the A/G framework, otherwise it will be another app.

I suggest then to create a section of the documentation collecting the known issue related to the A/G framework.

This will give clarity, avoid the creation of out of scope issues, and improve honesty on the unsolvable (by the developers) privacy issues.

Thank you, Vittorio

[pdehaye]

This would indeed be very welcome.

That comment is also applicable to #124.