Update delete-by-query.asciidoc (#37370)
Update delete-by-query.asciidoc (#37370)

Tried my best to clarify sentence on `_delete_by_query` docs.
strapdata/elassandra,vroyer/elassandra,vroyer/elassandra,strapdata/elassandra,strapdata/elassandra,vroyer/elassandra,strapdata/elassandra,strapdata/elassandra