[Enhancement]: add a clear, tight explanation of WFO

[eenblam]

The core prose describing WFO on the main docs page is quite generic. It would be great to have a clear, tight explanation of what the Orchestrator actually does. (i.e. focus in on modeling the lifecycle of (network) products as a service.)

[hanstrompert]

@eenblam Do you mean this page: https://workfloworchestrator.org/orchestrator-core/ ?