What's Changed
* refactor: move cli to return codes always and check by benfdking in https://github.com/quarylabs/sqruff/pull/910
* internal: preparing tests for fix by benfdking in https://github.com/quarylabs/sqruff/pull/911
* docs: add documentation to cli by benfdking in https://github.com/quarylabs/sqruff/pull/912
* fix: add `SegmentBuilder::comma` method and update rule usage by gvozdvmozgu in https://github.com/quarylabs/sqruff/pull/918
* chore: bump version by benfdking in https://github.com/quarylabs/sqruff/pull/921
**Full Changelog**: https://github.com/quarylabs/sqruff/compare/v0.20.0...v0.20.1