The real-time example docs don’t match the demo

[chasenlehara]

The docs in this section don’t match the demo: https://canjs.com/doc/can-connect/real-time/real-time.html#Example

• addListReference isn’t called
• Object.observe isn’t used
• update function doesn’t exist
• can-util/dom/events/events is used to listen for events
• deleteInstanceReference is never called