minor readme updates (#132)

Author: bcherry

README.md

@@ -23,8 +23,7 @@ The repo containing the (server side) agent implementations (including example a
 
 ## Try out a live version
 
-You can try out the agents playground at [https://livekit-agent-playground.vercel.app](https://livekit-agent-playground.vercel.app).
-This will connect you to our example agent, KITT, which is based off of the [minimal-assistant](https://github.com/livekit/agents/blob/main/examples/voice-pipeline-agent/minimal_assistant.py).
+You can try out a demo of the playground with [KITT](https://kitt.livekit.io) or the [hosted playground](https://agents-playground.livekit.io) for your own agents.
 
 ## Setting up the playground locally