Linter: Implement `a11y-avoid-generic-link-text` rule

[marcoroth]

Implement the GitHub::Accessibility::AvoidGenericLinkText rule from erblint-github.

Rule Details

Avoid setting generic link text like "Click here", "Read more", and "Learn more" which do not make sense when read out of context.

Banned generic text:

• Read more
• Learn more
• Click here
• More
• Link
• Here

Examples

Incorrect code for this rule:

<a href="github.com/about">Learn more</a>
<a href="github.com/about">Read more</a>
<a href="github.com/new">Click here</a>

Correct code for this rule:

<a href="github.com/about">Learn more about GitHub</a>
<a href="github.com/new">Create a new repository</a>
<!-- not ideal but acceptable -->
<a aria-label="Learn more about GitHub" href="github.com/about">Learn more</a>

References

• erblint-github source
• erblint-github docs

Parent Issue

• erblint-github compatibility/parity #1205

[joelhawksley]

PR: #1673