List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=-name&page=3211
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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    "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-name&page=3210",
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                "name": "GoBanDit+",
                "summary": "Заходи в группу тут много интересного,заранее спасибо))\nCome to the group here a lot of interesting things, thank you in advance))",
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                "summary": "ONLY FOR MY FRIENDS! SO FRIEND ME NOW!",
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            "name": "Just a random tournament - Come and join if you'd like to",
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            "description": "Just a random tournament. Provisional players are invited (because I am one). Hope you don't mind! Come and join if you'd like to! This is a 9x9 tournament. Have fun! ~Anonymous Guy (if u know who i am i am a random guy that u prob dont know) 😜",
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                "name": "ChatRoom404",
                "summary": "This is just a group. Do whatever you like here! It is also alright if you want to just join this group and chat. ~Destroyer802 😝",
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            "name": "Just a random 9x9 RR fun tournament :)",
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            "description": "1 day per turn. have fun :)",
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        {
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            "name": "Just Join This!",
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            "description": "What is this box for? Hey don’t read this! Only ten people can join.",
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