This is just a stub with bits of information about RISC-V support on
Zephyr, that can and should be improved over time.
Signed-off-by: Ederson de Souza <ederson.desouza@intel.com>
Add a guide section on how to use semihosting with an example code
section on opening a file to read data from it.
Signed-off-by: Jordan Yates <jordan.yates@data61.csiro.au>