Adding in doc about application specific webhooks.

Pulling from FusionAuth/fusionauth-issues#169 comments.

Author: mooreds

site/docs/v1/tech/events-webhooks/events.adoc

@@ -27,6 +27,24 @@ These are the events that FusionAuth generates that can be optionally consumed b
 * <<JWT Refresh>> - when an access token is refreshed using a refresh token
 * <<JWT Refresh Token Revoke>> - when a refresh token (or multiple tokens) are revoked
 
+=== Application Scoped Events
+
+There are some events which can be sent for only one or more specified applications.
+
+The events that are considered "application" events and can be scoped to an application based up the Webhook config: 
+
+* `user.action`
+* `jwt.refresh-token.revoke`
+* `jwt.refresh`
+* `jwt.public-key.update`
+
+=== Tenant Scoped Events
+
+Any events which are not application scoped events are tenant scoped. 
+
+Tenant scoped events can't be limited to a certain application. These either fire for all applications in a tenant or none of them.
+
+All user events are tenant scoped. For example, the `user.delete`, `user.create`, `user.update`, and `user.deactivate` events are all non-application specific.
 
 == User Actions