Describe the actual implication of omitting contains_url
Closes
@@ -32,4 +32,4 @@ allOf:
contains_url:
type: boolean
description: If ``true``, includes only events with a ``url`` key in their content. If
- ``false``, excludes those events. Defaults to ``false``.
+ ``false``, excludes those events. If omitted, ``url`` key is not considered for filtering.
