Task: Send trending "Show HN" to email

n8n workflow JSON:
{"nodes":[{"name":"IF","type":"n8n-nodes-base.if","position":[1050,500],"parameters":{"conditions":{"string":[{"value1":"={{$node[\"HTML Extract Data\"].data[\"title\"]}}","value2":"Show HN:","operation":"contains"}]}},"typeVersion":1},{"name":"Send Email","type":"n8n-nodes-base.emailSend","position":[1450,400],"parameters":{"text":"={{$node[\"Function\"].data[\"emailText\"]}}","options":{},"subject":"Trending Show HN"},"typeVersion":1},{"name":"Cron","type":"n8n-nodes-base.cron","position":[250,500],"parameters":{"triggerTimes":{"item":[{"hour":13}]}},"typeVersion":1},{"name":"Function","type":"n8n-nodes-base.function","position":[1250,400],"parameters":{"functionCode":"let emailText = 'Currently trending \"Show HN\":\\n\\n';\n\nfor (let item of items) {\n  emailText += `${item.json.rank} ${item.json.title}\\n${item.json.url}\\n\\n`;\n}\n\nreturn [{json: {emailText}}]\n"},"typeVersion":1},{"name":"HTTP Request","type":"n8n-nodes-base.httpRequest","position":[450,500],"parameters":{"url":"https://news.ycombinator.com/","options":{},"responseFormat":"string"},"typeVersion":1},{"name":"HTML Extract Items","type":"n8n-nodes-base.htmlExtract","position":[650,500],"parameters":{"options":{},"extractionValues":{"values":[{"key":"item","cssSelector":"tr.athing","returnArray":true,"returnValue":"html"}]}},"typeVersion":1},{"name":"HTML Extract Data","type":"n8n-nodes-base.htmlExtract","position":[850,500],"parameters":{"options":{},"dataPropertyName":"item","extractionValues":{"values":[{"key":"title","cssSelector":"a"},{"key":"url","attribute":"href","cssSelector":"a.storylink","returnValue":"attribute"},{"key":"rank","cssSelector":".rank"}]}},"typeVersion":1}],"connections":{"IF":{"main":[[{"node":"Function","type":"main","index":0}]]},"Cron":{"main":[[{"node":"HTTP Request","type":"main","index":0}]]},"Function":{"main":[[{"node":"Send Email","type":"main","index":0}]]},"HTTP Request":{"main":[[{"node":"HTML Extract Items","type":"main","index":0}]]},"HTML Extract Data":{"main":[[{"node":"IF","type":"main","index":0}]]},"HTML Extract Items":{"main":[[{"node":"HTML Extract Data","type":"main","index":0}]]}}}