Guide to hub.listen does not provide enough info as to how to use it.

**This page does not describe how to use hub.listen it is not a GUIDE, yes there is a code example but I have no idea where to put this code, it should explain how the listen works and how it constantly waits for a response, it should even goes as far to advise the underlying tech that it uses like a web socket or the like.

Guides are meant to help people learn how to use your framework/language not to slow them down.
Amplify is getting increasingly annoying, but if the content in the guides/example/tutorials were accurate to the point, then we could over look the bugs.
**:

**[URL page where content issue is](https://docs.amplify.aws/guides/authentication/listening-for-auth-events/q/platform/js/)**: