List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-id&page=3308
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=3307",
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                "summary": "[Our forum page](https://forums.online-go.com/t/go-variants-group/29109) with a lot of rules and games\n",
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        {
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            "name": "Manchester Go Club - Rapid 19x19 Tournament #9",
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            "description": "Welcome to the 9th Manchester Go Club Rapid 19x19 Tournament. Please make sure to log in to OGS and open this page in your browser before 8:15 PM GMT+1 to be included in the draw!",
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