title: Jenkins: build one job after another with some delay
body: <p>I have 2 jobs in Jenkins: QA and Dev.
  In Dev job I checked "Build after other projects are built" option and set project name =  QA so that QA job will be built after Dev job is built.
  But in my particular situation  I need that QA job started building in 5 mins after Dev job is built. How can I do it? maybe I can add some build step with some data to add this delay ?</p>
  
  <p>TIA,
  Anna</p>