Project Documentation Improvements

[msivosuo]

• [ ] clear role specific documents:
  • [ ] developers
  • [ ] cluster admins
  • [ ] workload owners
• [ ] cluster admins
  • [ ] document deployment options
  • [ ] document device_ownership_from_security_context
• [ ] workload owners
• [ ] clearly specify pre-requisites for each role
• [ ] Sub-tickets:
  • [x] #1132
  • [ ] #1061
  • [x] #1060
  • [x] #1059
  • [ ] #957
  • [ ] #1219
  • [ ] #1017
  • [x] #1381
  • [x] #1483
  • [ ] #1555
• [ ] update/harmonize hub.docker.com/intel plugin READMEs
• [x] Fix command in docs by adding single quotes (from #1278)
• [ ] review extensions.rst

[chaitanya1731]

@mythi will this also include the revised(updated) CRDs documentation? this is what users will see while deploying the plugins on the openshift console. Mentioned here too #1528

[mythi]

@chaitanya1731 this is more like a meta issue. I believe we don't have any issue open to cover any specific CRD description updates. We updated GPU and QAT for 0.28. Anything else you think should be covered?