Information on observing arrays should be documented

When I search in the hub for "array" or "observable" I can't find any information about observing arrays. There is nothing in the Articles TOC that I can find containing that information.

This is to suggest that information on observing arrays should be documented and findable.

I'm using Edge browser.

Start by reviewing the documentation hub search for “array” and “observable” and the Articles TOC to locate the relevant documentation area. Clarify what observing arrays should cover, then add the information where newcomers can find it through those terms. Done means the topic is documented and discoverable from the hub.

Written by the indexing model from the issue text.