Incubator + Review Process on https://develop.kde.org/docs/

[Plata]

Hi,


I've opened a MR 
(https://invent.kde.org/documentation/develop-kde-org/-/merge_requests/308) 
to include the Incubator and KDE Review processes on 
https://develop.kde.org/docs/ such that new contributors can easily find 
them.


It's basically moved from the wiki but has a few changes based on the 
review comments so far.

Please take a look to ensure that the described processes are correct.



Rgds

Plata