improvements to DEVELOPMENT.md

[fantapop]

Some random improvements to the DEVELOPMENT.MD file including:

• Add a section on using a debugger
• update qaserver example url to apiserver
• update question section to refer to Console team instead of App Platform

Commit checklist

• [ ] Changelog
• [ ] Doc gen (make generate)
• [ ] Integration test(s)
• [ ] Acceptance test(s)
• [ ] Example(s)