Doc update to tell host machine has to have python3 jsonschema installed
Doc update to tell host machine has to have python3 jsonschema installed

Signed-off-by: Bruno Bottazzini <c92d71c55f49bd220e26b4af231350d119acce9e@intel.com>

brunobottazzini/meta-soletta,solettaproject/meta-soletta,solettaproject/meta-soletta,brunobottazzini/meta-soletta