doc: how migrations can use plugin conf to specify tiers
Summary
- doc: how migrations can use plugin conf to specify tiers
We agreed to start from describing the end result in documentation first. This is not implemented yet.
- Close #...
- Cherry-pick to: none
- Staging: https://docs.binary.picodata.io/picodata/dkr_tier_migrations/architecture/plugins/
Edited by Alexander Tolstoy