List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-rules&page=5791
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "description": "<ul>\n    <li><pre>China rules</pre></li>\n    <li><pre>Fisher clock( 3 day + 2 day (< 5 day) )</pre></li>\n    <li><pre>MacMagon system</pre></li>\n</ul>\n\n<div align=\"center\", style=\"font-size: 20px;\"><b>Good Game !</b></div>",
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