A new role :zephyr_file: is available that renders to a link to the file
or folder in GitHub. Find appropriate references using :file: and
convert to :zephyr_file: to take advantage of its linking capability.
Signed-off-by: David B. Kinder <david.b.kinder@intel.com>
Added more detailed information how to connect Zephyr instance
to host system like Linux desktop.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>