What's Changed
* improving docs UX by TyDunn in https://github.com/dlt-hub/dlt/pull/110
* docstings and cli improvements by rudolfix in https://github.com/dlt-hub/dlt/pull/114
* allows hash mismatch when loading schema that needs migration
* makes full_refresh flag configurable
* fixes config/secrets injection when union with base configuration is used, fixes secret hint detection
* properly restores pipeline state when extract step fails