Any example command lines for the RaspberryPi Models

[Alex Bennée]

Hi,

Someone was asking on IRC earlier and I realised we don't give any
examples in the documentation of how to attach block devices. I found a
reference in an out-of-tree repo that mentioned -sd which seems right
but I assume you must be able to use -device sd-card as well?

Could we document some of the common boot examples in
docs/system/arm/raspi.rst please?

-- 
Alex Bennée