docs: remove the link to now/vercel

Author: darrachequesne

README.md

@@ -10,6 +10,6 @@ You can also spin up a free Heroku dyno to test it out:
 
 [![Deploy](https://www.herokucdn.com/deploy/button.png)](https://heroku.com/deploy?template=https://github.com/socketio/chat-example)
 
-Besides, the application is deployed on [Now](https://zeit.co/now): https://socketio-chat-example.now.sh/
+Or run it on [Repl.it](https://repl.it/):
 
-[![Run on Repl.it](https://repl.it/badge/github/socketio/chat-example)](https://repl.it/github/socketio/chat-example)
+[![Run on Repl.it](https://repl.it/badge/github/socketio/chat-example)](https://repl.it/github/socketio/chat-example)