ttl: mention that ttl_delete_rate_limit is per node with at least one leaseholder for the table #17910
Description
Evan Wall (ecwall) commented:
The documented ttl_delete_rate_limit does not mention that the limit is per node with at least one leaseholder for the table:
https://www.cockroachlabs.com/docs/stable/row-level-ttl#ttl-storage-parameters
This caused some confusion during a support escalation here:
https://github.com/cockroachlabs/support/issues/2612#issuecomment-1730333379
Jira Issue: DOC-8877