add endpoint on_client offline and gone

files/vernemq.conf

@@ -820,6 +820,12 @@ vmq_webhooks.webhook5.endpoint = http://localhost:40000/ondeliver
 vmq_webhooks.webhook6.hook = on_unsubscribe
 vmq_webhooks.webhook6.endpoint = http://localhost:40000/onunsub
 
+vmq_webhooks.webhook7.hook = on_client_offline
+vmq_webhooks.webhook7.endpoint = http://localhost:40000/onoff
+
+vmq_webhooks.webhook8.hook = on_client_gone
+vmq_webhooks.webhook8.endpoint = http://localhost:40000/ongone
+
 ## Specify the address and port of the bridge to connect to. Several
 ## bridges can configured by using different bridge names (e.g. br0). If the
 ## connection supports SSL encryption bridge.ssl.<name> can be used.