List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=max_ranking&page=365
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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                "name": "9x9 Lovers",
                "summary": "A group for Go players who love the 9x9 board.",
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                "username": "Dennis H",
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            "description": "Games on 9x9 board without analysis is a good way for improving our life & dead reading, and this tournament is easy way to quickly play some games!",
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            "name": "Good 😌",
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            "description": "Have a good game",
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                "name": "Hong Kong ",
                "summary": "First priority : HK people join plz                                                                     \nThis group welcomes everyone, but only if you don't be rude.",
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                "name": "Four Seasons Tournament Series",
                "summary": "Серия турниров \"Четыре Сезона\"",
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            "description": "If you want to be stronger, then you should often play with those who are a little stronger than you. Training Grounds tournaments provide you with this opportunity.",
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