bpo-33252: Document that ResourceWarning is ignored by default (GH-30358)

`ResourceWarning` is ignored by default.

Document this behaviour, for consistency with others in this table such as `DeprecationWarning`.

Documentation PR can skip NEWS file.

Automerge-Triggered-By: GH:iritkatriel

Hugo van Kemenade committed 4y ago

b949845b36b999185ed2bdf8a04dca1da39f3002

Parent: e09d94a

Committed by GitHub <noreply@github.com> on 1/4/2022, 11:34:31 AM