improve README

5 jobs for master in 7 minutes and 15 seconds (queued for 6 seconds)
Status Job ID Name Coverage
  Build
passed #84785
build

00:04:28

 
  Image
passed #84786
make-image

00:01:04

 
  Deploy
passed #84787
lightweight
deploy-master

00:01:43

manual #84789
lightweight allowed to fail manual
deploy-prod
manual #84788
lightweight allowed to fail manual
stop-deploy-master