List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-time_start&page=3766
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "name": "ბლიც ტურნირი",
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                "icon": "https://user-uploads.online-go.com/9f0d55a036f99b11f4bf001bd22dee66-64.png",
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            },
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        {
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            "exclude_provisional": false,
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                "name": "Murase Go Group",
                "summary": "The group of Japanese and any go player from different countries.\nこのグループは日本人や世界中の国々の人々が集うグループです。",
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        {
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