List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-id&page=3537
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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    "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=-id&page=3536",
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        },
        {
            "id": 59637,
            "name": "mecha tournament which is fun",
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                "id": 747928,
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            "description": "Please don’t invite anyone it will start when there is nine players\nSorry for not telling you last time\nHave fun",
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