add note for overlapping event rules

Author: harshil1712

src/content/docs/r2/buckets/event-notifications.mdx

@@ -232,3 +232,6 @@ Queue consumers receive notifications as [Messages](/queues/configuration/javasc
 ## Notes
 
 - Queues [per-queue message throughput](/queues/platform/limits/) is currently 5,000 messages per second. If your workload produces more than 5,000 notifications per second, we recommend splitting notification rules across multiple queues.
+- Rules without prefix/suffix apply to all objects in the bucket. To add prefix/suffix to the existing event type, delete and create a new rule.
+- For the same queue, you can have same event type rules with different prefix/suffix configurations.
+- For the same queue and prefix/suffix, you cannot create rules with overlapping event types. Example: If a rule handles PutObject and DeleteObject events, another rule cannot include PutObject or CopyObject for the same queue and prefix/suffix configuration.