List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=-auto_start_on_max&page=770
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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            "name": "bergedorf spielt 9x9",
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            "description": "Lange Zeitkontrolle, aber ich hoffe wir können das heute beenden.",
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                "summary": "Gruppe für Teilnehmer(innen) des Bergedorfer Go-Treffs in der Lola",
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            "description": "A Prize? or Not?",
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        {
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