Actually add those guidelines

7 jobs for master in 11 minutes and 44 seconds (queued for 16 minutes and 9 seconds)
Status Name Job ID Coverage
  Lint
passed flake8 #2215

00:00:26

passed shellcheck #2212

00:00:29

passed shfmt #2213

00:00:24

passed validate-packer #2216

00:00:28

passed yapf #2214

00:00:26

 
  Build
passed build:qemu #2217
secure-kvm

00:05:22

passed build:virtualbox #2218
secure-virtualbox

00:05:52