Task: Message on website content changed in Telegram

n8n workflow JSON:
{"nodes":[{"name":"HTTP Request","type":"n8n-nodes-base.httpRequest","position":[520,440],"parameters":{"url":"https://news.ycombinator.com/","options":{},"responseFormat":"string"},"typeVersion":1},{"name":"Wait","type":"n8n-nodes-base.wait","position":[680,440],"webhookId":"e5f84b2f-2568-4f5b-a72b-ed54838c768b","parameters":{"unit":"minutes","amount":5},"typeVersion":1},{"name":"HTTP Request1","type":"n8n-nodes-base.httpRequest","position":[880,440],"parameters":{"url":"https://news.ycombinator.com/","options":{},"responseFormat":"string"},"typeVersion":1},{"name":"IF","type":"n8n-nodes-base.if","position":[1100,440],"parameters":{"conditions":{"boolean":[{"value1":"={{$node[\"HTTP Request\"].json[\"data\"]}} {{$node[\"HTTP Request\"].json[\"data\"]}}","value2":"="}]}},"typeVersion":1},{"name":"Cron","type":"n8n-nodes-base.cron","position":[320,440],"parameters":{"triggerTimes":{"item":[{"mode":"everyX","unit":"minutes","value":5}]}},"typeVersion":1},{"name":"Telegram1","type":"n8n-nodes-base.telegram","position":[1320,520],"parameters":{"text":"Something got changed","chatId":"1234","additionalFields":{}},"credentials":{"telegramApi":{"id":"4","name":"n8n test bot"}},"typeVersion":1},{"name":"NoOp","type":"n8n-nodes-base.noOp","position":[1320,320],"parameters":{},"typeVersion":1}],"connections":{"IF":{"main":[[{"node":"NoOp","type":"main","index":0}],[{"node":"Telegram1","type":"main","index":0}]]},"Cron":{"main":[[{"node":"HTTP Request","type":"main","index":0}]]},"Wait":{"main":[[{"node":"HTTP Request1","type":"main","index":0}]]},"HTTP Request":{"main":[[{"node":"Wait","type":"main","index":0}]]},"HTTP Request1":{"main":[[{"node":"IF","type":"main","index":0}]]}}}