Developer docs are out of date and need to be updated

[nitishm]

Describe the bug
Developer docs are not up to date.

• Debugging : we now utilitze on make dev along with delve to debug our control plane. The make dev target creates a KinD cluster with the orkestra controller disabled. End-user can either step through using a debugger like delve or start the process locally using make debug. We no longer require okteto, Azure bridge-for-kubernetes or Tilt for debugging.
• Directory structure table out of date.