Local Storage middleware include example of when to register it

**I'm submitting a feature request**

**Current behavior:**
In https://aurelia.io/docs/plugins/store#default-middlewares for **The Local Storage middleware** the info box gives a great hint about not registering the Local Storage middleware at startup, since that will just save the initial state into local storage.

It recommends to "make sure to register the middleware just after the initial state has loaded."

But state doesn't have any lifecycle bindings.

Should this be placed into the `bind()` method?
What happens if I am using the `connectTo decorator`?

Extending this infobox with an example would be super helpful.

Start with the “The Local Storage middleware” section under default-middlewares in the Aurelia documentation. Clarify when to register the middleware after initial state loading, including whether bind() or the connectTo decorator is appropriate, and consider adding the requested usage example.

Written by the indexing model from the issue text.