Clarify comments in example config

example-config.yaml

@@ -9,7 +9,7 @@ homeserver:
     # Standard Matrix homeservers like Synapse, Dendrite and Conduit should just use "standard" here.
     software: standard
     # The URL to push real-time bridge status to.
-    # If set, the bridge will make POST requests to this URL whenever a user's discord connection state changes.
+    # If set, the bridge will make POST requests to this URL whenever a user's iMessage connection state changes.
     # The bridge will use the appservice as_token to authorize requests.
     status_endpoint: null
     # Endpoint for reporting per-message status.
@@ -100,10 +100,15 @@ bridge:
     displayname_template: "{{.}} (iMessage)"
 
     # A URL to fetch validation data from. Use this option or the nac_plist option
+    # If connecting to a relay, use the base URL that the API is running under, without any trailing slashes,
+    # e.g. https://example.com
     nac_validation_data_url: http://example.com/validation_data
+    # If connecting to a relay, be sure to set the option below to true
+    nac_validation_is_relay: false
     # Optional auth token to use when fetching validation data. If null, defaults to passing the as_token.
+    # If using a relay, this must be the "registration code" generated by the iPhone or Mac registration provider
+    # Do not use the REGISTRATION_RELAY_SECRET, since that is unrelated!
     nac_validation_data_token:
-    nac_validation_is_relay: false
 
     # Servers to always allow double puppeting from
     double_puppet_server_map: