G211: Example 8 gets wrong code example

[kantoche]

Hi,
Example 8 has the same code as example 7: https://www.w3.org/WAI/WCAG21/working-examples/label-in-name-general/example4.html.
Due to the update of the technique's content, code examples have not been updated (remaining https://www.w3.org/WAI/WCAG21/working-examples/label-in-name-general/example3.html still available).

[patrickhlauke]

@kantoche good spot. filed #4555