Update README.md

README.md

@@ -13,12 +13,12 @@ PeerJS provides a complete, configurable, and easy-to-use peer-to-peer API built
 <script src="http://cdn.peerjs.com/0.3/peer.js"></script>
 ```
 
-**Create a Peer**
+**Create a Peer**  
+Get a [free API key](http://peerjs.com/peerserver). Your id only needs to be unique to the namespace of your API key.
 ```javascript
 var peer = new Peer('pick-an-id', {key: 'myapikey'}); 
 // You can pick your own id or omit the id if you want to get a random one from the server.
 ```
-Get a [free API key](http://peerjs.com/peerserver)
 
 ## Data connections
 **Connect**