Is there a way to ingest metadata about 'owners' and 'about' using yml file and 'DataHub CLI'?

you can check out csv-enricher, a new feature that reads information from a csv and uses it to enrich existing metadata in datahub. https://datahubproject.io/docs/generated/ingestion/sources/csv

Thank you for your comment. I have one more question. I tried to change 'about' using description which is commented to Module csv-enricher page. But It didn't work. How could I ingest 'about' using csv-enricher? or Is it impossaible to ingest 'about' data?

the latest version should be able to update the dataset description. the first version of the csv-enricher doesnt update description. perhaps you could write the output to file sink and verify that the aspect is written correctly?