Explain multi-repo concepts like manifests and projects, give an
overview of the currently implemented commands, and give an example of a
potential workflow.
There's no way to submit a multi-repo change for review yet, so this is
still experimental.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
This covers its design and scope, and provides usage and some
implementation documentation on the existing flashing and debugging
commands.
Signed-off-by: Marti Bolivar <marti@opensourcefoundries.com>