Add conversion documentation
Add conversion documentation

This adds a document regarding all the values which are converted from
Docker Compose to Kubernetes / OpenShift. Adding both notes as well as
the value that docker-compose is mapped to in Kubernetes / OpenShift.

containscafeine/kompose,gitlawr/kompose,cdrage/kompose,surajnarwade/kompose,rupalibehera/kompose,procrypt/kompose,cdrage/kompose,gitlawr/kompose,skippbox/kompose,kubernetes/kompose,rupalibehera/kompose,ashetty1/kompose,gitlawr/kompose,skippbox/kompose,procrypt/kompose,surajnarwade/kompose,surajnarwade/kompose,skippbox/kompose,containscafeine/kompose,kadel/kompose,ashetty1/kompose,procrypt/kompose,ashetty1/kompose,containscafeine/kompose,kadel/kompose,kubernetes/kompose,rupalibehera/kompose