Added 'how to debug' steps to README
Added 'how to debug' steps to README

avlasov-mos-de/mos-tempest-runner,obutenko/mos-tempest-runner,Mirantis/mos-tempest-runner,obutenko/mos-tempest-runner,avlasov-mos-de/mos-tempest-runner,Mirantis/mos-tempest-runner