Adds plc.tartarus.us instance to the instance list.
··· 15 }, 16 { 17 "url": "https://plc.madebydanny.uk" 0 0 0 18 } 19 - ]
··· 15 }, 16 { 17 "url": "https://plc.madebydanny.uk" 18 + }, 19 + { 20 + "url": "https://plc.tartarus.us" 21 } 22 + ]