Create Elyra v4 migration guide #3140
Description
Is your feature request related to a problem? Please describe.
Elyra v4.0.0 introduces several breaking changes, which need to be documented.
Describe the solution you'd like
Create a migration guide that lists
- breaking changes
- required actions
Describe alternatives you've considered
A clear and concise description of any alternative solutions or features you've considered.
Additional context
Add any other context or screenshots about the feature request here.