Health Check Websites with Google Sheets & Telegram Alerts

What does this template do ? This workflow performs scheduled health checks on a list of URLs stored in a Google Sheet. Every X minutes, it retrieves the URLs, sends HTTP requests to check their availability, and notifies a Telegram chat if any request fails. You can easily replace Telegram with any other notification service supported by n8n, such as Slack, Discord, Email, or Microsoft Teams. Use Case Ideal for monitoring internal or external services, ensuring uptime and responsiveness. Integrate with your preferred messaging platform for real-time failure notifications—without setting up complex infrastructure. What the Workflow Does ⏰ Triggers at regular intervals using Schedule Trigger

Help me set up the n8n workflow "Health Check Websites with Google Sheets & Telegram Alerts" (https://n8n.io/workflows/3352). It uses: Google Sheets, HTTP Request, Telegram. Import the template JSON into my n8n instance, list every credential I need to create, and walk me through testing it.