Fix lychee base-url

[glenn-jocher]

🛠️ PR Summary

_{Made with ❤️ by Ultralytics Actions}

🌟 Summary

Enhancement to the GitHub workflow for verifying website links with improved URL handling.

📊 Key Changes

• Added a new flag --base to the link-checking workflow to normalize URLs before checking them.

🎯 Purpose & Impact

• Improved Workflow Reliability: This change allows the workflow to more accurately identify the base URLs, thereby reducing false positives where links might have been incorrectly flagged as broken. 📈
• Enhanced User Experience: Users can expect more reliable and accurate documentation with fewer link errors in the published files, leading to a smoother navigational experience. 🧭

[UltralyticsAssistant]

👋 Hello @glenn-jocher, thank you for submitting a docs 🚀 PR to the Ultralytics repository! To ensure a smooth integration of your changes, please review the following checklist:

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