List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-rules&page=5935
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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    "next": null,
    "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=-rules&page=5934",
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            "description": "hi GUYs this is a great tournament",
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            "description": "A Go tournament that (should) be rather quick and is starting soon!",
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        {
            "id": 45113,
            "name": "Ratio Cup Group B (Choose one group)",
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}