Clearify DataTable.addRow() docs a bit more

[ItsAsbreuk]

At first glance, it is not clear how to add a row at a specific position, for instance:

dt.addRow(newrecord, {index: 1});

The current docs say: [config]: Configuration to pass along

Only if you realize this is the config that is passed to the data-ModelList and you look at ModelList.add, then you find out that [config] is an object with the fields 'index' and 'silent'.

It would be better to define this inside the datatable-docs, just as well as it is defined in the ModelList-doc

Regards,
Marco