List Countries

{
    "count": 123,
    "next": "http://api.example.org/accounts/?page=4",
    "previous": "http://api.example.org/accounts/?page=2",
    "results": [
        [
            {
                "name": "Germany",
                "alpha_2": "DE",
                "alpha_3": "DEU",
                "numeric": "276"
            }
        ]
    ]
}