Update MultipleTeamsDeletes.yaml

Updated as per review comments.

Detections/OfficeActivity/MultipleTeamsDeletes.yaml

@@ -3,6 +3,15 @@ name: Multiple Teams deleted by a single user
 description: |
   'This detection flags the occurrences of deleting multiple teams within an hour.
   This data is a part of Office 365 Connector in Azure Sentinel.'
+severity: Low
+requiredDataConnectors:
+- connectorId: Office365
+dataTypes:
+- OfficeActivity (Teams)
+queryFrequency: 1d
+queryPeriod: 1d
+triggerOperator: gt
+triggerThreshold: 0
 tactics:
   - Impact
 relevantTechniques: