Fix broken comment link for reflow hack

[WA9ACE]

Description

Harry Theo's blog post describing the element.offsetHeight hack for restarting an elements animation has moved to a new domain.

Motivation & Context

Anyone attempting to learn more about this from the JSDocs @see link will not find the information they are seeking.

Type of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Refactoring (non-breaking change)
• Breaking change (fix or feature that would change existing functionality)

Checklist

• I have read the contributing guidelines
• My code follows the code style of the project (using npm run lint)
• My change introduces changes to the documentation
• I have updated the documentation accordingly
• I have added tests to cover my changes
• All new and existing tests passed

Live previews

None required.