List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=min_ranking&page=5858
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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                "summary": "A learning and teaching environment for players of all strengths with emphasis on tournaments and game reviews. Come teach, learn, and have fun!",
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                "username": "Porcellio",
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            "description": "Have fun.",
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            "title": null,
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        {
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            "name": "Fast SDK Correspondence Tournament",
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            "description": "A tourney for those who like the flexibility of correspondence, but would prefer the tourney to progress quickly.",
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            "tournament_type": "swiss",
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