 A query is either _get_ (read from database), or _set_ (write to database).
 A query is _get_ if any query keys are null, otherwise the query is _set_.
 
-Examples of _get_ query:
+#### Examples of _get_ query:
 
 Get title and description for a project, given the project id.
 ```

       "id":"9dd3ef3f-002b-4893-b31f-ff51440c855f"}
```

Examples of _set_ query.

Set title and description for a project, given the project id.
```

         "id":"ec822d6f-f9fe-443d-9845-9cd5f68bac20"}
```

Set present user to open Jupyter notebooks in
"Modern Notebook" as opposed to "Classical Notebook".
This change not usually needed, because accounts
default to "Modern Notebook".

It is not necessary to specify the entire `editor_settings` object
if you are only setting the `jupyter_classic` attribute.
```
  curl -u sk_abcdefQWERTY090900000000: \\
    -H "Content-Type: application/json" \\
    -d '{"query":{"accounts":{"account_id":"29163de6-b5b0-496f-b75d-24be9aa2aa1d","editor_settings":{"jupyter_classic":false}}}}' \\
    https://cocalc.com/api/v1/query
  ==> {"event":"query",
       "multi_response":false,
       "id":"9dd3ef3f-002b-4893-b31f-ff51440c855f",
       "query": {}}
```


__NOTE:__ Information on which fields are gettable and settable in the database tables
via API message is in file 'db-schema.coffee', in CoCalc sources on GitHub at
