Please add dot notation info to JSON

I use dot object notation to query apis for some of my projects, but it is hard to find documentation about it. Can you please add this to your JSON portion?

Start by locating the JSON portion of the learnxinyminutes docs and reading how similar concepts are documented there. The requested change is to add discoverable information about dot object notation for querying APIs. Done means the JSON documentation includes that topic in the same style as the surrounding page.

Rédigé par le modèle d'indexation à partir du texte de l'issue.