docs: add link on linter without configuration

[ldez]

This PR creates an invisible span with ID to generate an anchor for all linter names.

Result:

link example: http://localhost:8000/usage/linters/#bodyclose

This also fixes:

• "back to the top" link for linter without repo (ex: lll)
• the behavior of "back to the top" link when the repo icon is not on the same line as the linter name (ex: staticcheck)

Fixes #4841

[Antonboom]

GitHub icon newlined somewhere

"Top" button have underscore

---

Also, offtop, in contribution guideline need to fix .reference to next.reference

Maybe do it in this PR to not spam issues?

[ldez]

GitHub icon newlined somewhere

It's just related to the size of the cell, it's expected because it's a table and the icon is not a character, I cannot fix that.
FYI there is already a non-breakable space ( ) between the text and the icon.

"Top" button have underscore

It's not an underscore but a link decoration: the emoji is a character and not an image so the "text" of the link has a decoration.

Also, offtop, in contribution guideline need to fix .reference to next.reference

I updated the file name.

[ldez]

I replaced the emoji with an icon.

Before:

After: