Don't accidentally limit application services to one homeserver

specification/application_service_api.rst

@@ -54,8 +54,8 @@ The following other versions are also available, in reverse chronological order:
 
 Application Services
 --------------------
-Application services are passive and can only observe events from a given
-homeserver. They can inject events into rooms they are participating in.
+Application services are passive and can only observe events from homeserver.
+They can inject events into rooms they are participating in.
 They cannot prevent events from being sent, nor can they modify the content of
 the event being sent. In order to observe events from a homeserver, the
 homeserver needs to be configured to pass certain types of traffic to the