Update the simple-chatbot demo to have JS and React clients

examples/simple-chatbot/examples/prebuilt/README.md

@@ -0,0 +1,15 @@
+# Daily Prebuilt Connection
+
+The simplest way to connect to the chatbot using Daily's Prebuilt UI.
+
+1. Start the bot server
+
+```bash
+python server/server.py
+```
+
+2. Visit http://localhost:7860
+
+3. Allow microphone access when prompted
+
+4. Start talking with the bot