anchor.diff:  
   === Get started
   [%step]
  +. Install Ansible
   . Create inventory
   . Execute desired command
   
  +=== Install Ansible
  +[source,bash]
  +----
  +$ yum install -y https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
  +$ yum install -y ansible
  +----
  +
   === Inventory
   ===== Creation
   [source,bash]
   ----
   $ touch ./hosts
  -$ vim ./hosts
  +$ vi ./hosts
   ----
   
   === Inventory
  
positive.code: === Run rtiperftest
  [source,bash]
  ----
  docker run --detach=true --name rti-perftest-pub guther/rti-perftest -pub -numSubscribers 1 -sleep 1000
  docker run --detach=true --name rti-perftest-sub guther/rti-perftest -sub
  ----
  
  === Demo
  
negative.code: ----
  $ vagrant init bento/centos-7.3
  $ vagrant up
  $ vagrant ssh
  ----
  
  === Demo
  