Update README.md

Author: georgeboot

README.md

@@ -14,8 +14,8 @@ It works by setting up a websocket API in API Gateway, and configure it to invok
 message is sent to the websocket. This package includes and autoconfigures a handler to respond to these websocket
 messages. We also configure Laravel to use this connection as a broadcast driver.
 
-This package currently only works if you deploy your app using [Bref](https://bref.sh), but it could theoretically also
-be deployed alongside a [Laravel Vapor](https://vapor.laravel.com) project.
+This package currently only works with either [Bref](https://bref.sh) or [Laravel Vapor](https://vapor.laravel.com),
+though the latter one involves some manual set-up.
 
 ## Requirements