chore: add link to readme

Author: achingbrain

README.md

@@ -54,6 +54,7 @@ Feel free to jump directly into the examples, however going through the followin
 #### Other examples
 
 - [Chat](./examples/js-libp2p-example-chat) - a simple chat app
+- [Browser Pub/Sub](./examples/js-libp2p-example-browser-pubsub) - Using Pub/Sub between browsers
 
 #### libp2p in the Browser