Docs: Added disableResolveMessage parameter (#66596)

Added disableResolveMessage parameter

docs/sources/alerting/set-up/provision-alerting-resources/file-provisioning/index.md

@@ -154,6 +154,8 @@ contactPoints:
       - uid: first_uid
         # <string, required> type of the receiver
         type: prometheus-alertmanager
+        # <bool, optional> Disable the additional [Incident Resolved] follow-up alert, default = false
+        disableResolveMessage: false
         # <object, required> settings for the specific receiver type
         settings:
           url: http://test:9000