Add VM version to saved tests results.
Fix typos.
Update doc using "modules" folder + fix some typos + clarification.
Update and improve README.
Merge remote-tracking branch 'origin/topic/bf_use_vm_box_version' into develop

* origin/topic/bf_use_vm_box_version:
  Add VM version to saved tests results.
Merge remote-tracking branch 'origin/topic/bf_improve_docs' into develop

* origin/topic/bf_improve_docs:
  Update and improve README.
  Update doc using "modules" folder + fix some typos + clarification.
  Fix typos.