List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=id&page=3629
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "description": "Esta noche jugamos Go, preparándonos para el campeonato de febrero. ¿Quién será el campeón?",
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            "description": "Esta noche jugamos Go e invitamos a una jugadora externa. ¡Que se diviertan!",
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        {
            "id": 85294,
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                "username": "gamesorry",
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