Chapt 1

1. Demo 1 - Simple to use getUserMedia
2. Demo 2 - Use different constraints for getUserMedia
3. Demo 3 - Use canvas with video to get a snapshot
4. Demo 4 - Use filters with video

Chapt 2

1. Demo 1 - RTCPeerConnection 1-to-1 communication without server

Chapt 3

1. Demo 1 - Multi-to-Multi communication with local server without real network. (should run server.js locally)
2. Demo 2 - Multi-to-Multi communication with real network