Remove `currently unused` from bridge config comment in `example-config.yaml` (#58)

example-config.yaml

@@ -41,7 +41,7 @@ appservice:
     as_token: "This value is generated when generating the registration"
     hs_token: "This value is generated when generating the registration"
 
-# Bridge config. Currently unused.
+# Bridge config
 bridge:
     # Localpart template of MXIDs for WhatsApp users.
     # {{.}} is replaced with the phone number of the WhatsApp user.