List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=handicap&page=856
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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                "summary": "Welcome to Final Frontier.\n\nWe have tons of tournaments and a magnificent director-Picard.\nPlease join this frontier soon, we are closing!",
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        {
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            "name": "Fast Correspondence - 9x9 - Weekly Round Robin - 2020, #17",
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                "username": "Kosh-retired",
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                "summary": "This group exists as a place to enjoy weekly tournaments with competitively minded players using the lesser known but arguably strategically superior New Zealand rule set. All are welcome here ヽ(≧◡≦)ノ",
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