Correct docs for binary fields and their default for doc values (#27680)
Correct docs for binary fields and their default for doc values (#27680)

closes #27240
vroyer/elassandra,vroyer/elasticassandra,vroyer/elasticassandra,strapdata/elassandra,strapdata/elassandra,vroyer/elassandra,strapdata/elassandra,vroyer/elassandra,vroyer/elasticassandra,strapdata/elassandra,strapdata/elassandra