Add Incubator and KDE Review
What does this merge request add?
Move Incubator/KDE Review documentation from wiki such that new KDE developers can find the information on how to add their projects in "Getting started".
How to test this MR
git clone https://invent.kde.org/documentation/develop-kde-org.git
cd develop-kde-org
git mr 308
hugo server
Edited by Plata Hill