List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-id&page=3125
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "description": "Qui veut apprendre avec moi ?",
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            "description": "%%%%%%%%%%%%%%%%%%%%%%%%\n\n!!!LIVE GAME APPOINTMENTS ARE NOT SCHEDULED AUTOMATICALLY!!!\n\nONCE TOURNAMENT STARTS:\n\nCOME BACK HERE TO FIND YOUR ASSIGNED OPPONENT ARRANGE A >30min VIDEO CONFERENCE WITH YOUR OPPONENT FINISH YOUR GAME WITHIN ONE WEEK, TO PREVENT BLOCKING THE TOURNAMENT. EACH MONDAY, SCHEDULE YOUR NEXT MATCH VIDEO CONFERENCE. \n\n%%%%%%%%%%%%%%%%%%%%%%%%",
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