Task: send discord message when someone tweets something new

n8n workflow JSON:
{"id":2,"name":"send discord message when someone tweets something new","nodes":[{"name":"On clicking 'execute'","type":"n8n-nodes-base.manualTrigger","position":[220,120],"parameters":{},"typeVersion":1},{"name":"Get tweets","type":"n8n-nodes-base.httpRequest","position":[520,220],"parameters":{"url":"https://api.twitter.com/1.1/statuses/user_timeline.json?screen_name=<REPLACE ME WITH USER>&count=2","options":{},"authentication":"headerAuth"},"credentials":{"httpHeaderAuth":{"id":"4","name":"twitter"}},"typeVersion":1},{"name":"Set","type":"n8n-nodes-base.set","position":[980,200],"parameters":{"values":{"string":[{"name":"last_id","value":"={{$node[\"Get tweets\"].json[\"0\"][\"id_str\"]}}"}]},"options":{},"keepOnlySet":true},"typeVersion":1},{"name":"IF","type":"n8n-nodes-base.if","position":[760,220],"parameters":{"conditions":{"string":[{"value1":"={{$node[\"Get tweets\"].json[\"0\"][\"id_str\"]}}","value2":"={{$node[\"Set\"].json[\"last_id\"]}}","operation":"notEqual"}]}},"typeVersion":1},{"name":"Wait","type":"n8n-nodes-base.wait","position":[740,520],"webhookId":"5ad0f515-89a3-4837-9dab-310498b29c0c","parameters":{"unit":"seconds","amount":5},"typeVersion":1},{"name":"Discord","type":"n8n-nodes-base.discord","position":[1180,200],"parameters":{"text":"=https://twitter.com/twitter/status/{{$node[\"Get tweets\"].json[\"0\"][\"id_str\"]}}","options":{},"webhookUri":"<REPLACE ME WITH WEBHOOK>"},"typeVersion":1},{"name":"Workflow Trigger","type":"n8n-nodes-base.workflowTrigger","position":[220,340],"parameters":{"events":["activate"]},"typeVersion":1}],"active":true,"settings":{},"connections":{"IF":{"main":[[{"node":"Set","type":"main","index":0}],[{"node":"Wait","type":"main","index":0}]]},"Set":{"main":[[{"node":"Discord","type":"main","index":0}]]},"Wait":{"main":[[{"node":"Get tweets","type":"main","index":0}]]},"Discord":{"main":[[{"node":"Wait","type":"main","index":0}]]},"Get tweets":{"main":[[{"node":"IF","type":"main","index":0}]]},"Workflow Trigger":{"main":[[{"node":"Get tweets","type":"main","index":0}]]},"On clicking 'execute'":{"main":[[{"node":"Get tweets","type":"main","index":0}]]}}}