Sayanta Pattanayak authored Jan 07, 2021 and Thomas Abraham committed Feb 22, 2021

Add the initial user guide for the RD-N1-Edge Dual-Chip platform
software stack. This version of the user guide points to documents that
provide information about how to obtain the platform software stack and
use the various features it provides.

Signed-off-by: Sayanta Pattanayak <sayanta.pattanayak@arm.com>
Change-Id: I3668544148e33f93c3cad420ac5547f2493df974