feature/add-link-checker

[tohuynh]

Pull request recommendations:

• Name your pull request your-development-type/short-description. Ex: feature/read-tiff-files
• Link to any relevant issue in the PR description. Ex: Resolves [feature/add-link-checker #12], adds tiff file format support
• Provide context of changes.
  The PROD google sheets contain URLs that needs verifying whether they are broken or not.
• Fill in the script to check external links
• Add broken external links as a workflow run artifact
• Update document on how to run the script
• Provide relevant tests for your feature or bug fix.
• Provide or update documentation for any feature added by your pull request.

Thanks for contributing!