Final call: Clear up link-acc-name examples

Hey folks,

This PR makes a few minor improvements to the link has accessible name
rule, as requested by the AG working group. This final call lasts until
October 12th. If you have any comments, please leave a review:
https://github.com/act-rules/act-rules.github.io/pull/1467

-- 
*Wilco Fiers*
Axe-core product owner - Co-facilitator WCAG-ACT - Chair ACT-R


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