docs: fix dev script and tidy up README wording

[Kamsou]

🔗 Linked issue

N/A (small docs-only fixes, no issue needed.)

📚 Description

I was reading through the README and spotted a handful of small things, so I grouped them into one docs PR.

The main one is a broken command: the Development section tells you to run pnpm dev:build, but that script doesn't exist in package.json, copy-pasting it just errors. The actual build script is pnpm build, so I fixed that.

The rest are wording cleanups in line with the docs style guide:

• swapped subjective words ("easy", "quick") for what the feature actually does
• turned a few passive sentences back into active voice
• used "Nuxt Accessibility" consistently in prose, while keeping "Nuxt a11y" where it points at the real DevTools tab label

Plus two cosmetic nits: a double space in one heading and an inconsistent "Scroll-to-element" spelling.

Docs only, no behaviour changes.

[pkg-pr-new]

Open in StackBlitz

npm i https://pkg.pr.new/@nuxt/a11y@316

commit: 62c0429

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 9881baba-b884-4b18-a438-547f0efaeddc

📥 Commits

Reviewing files that changed from the base of the PR and between 9f8e04b and 62c0429.

📒 Files selected for processing (1)

• README.md

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📝 Walkthrough

Walkthrough

This PR updates README.md documentation across multiple sections. The changes clarify DevTools UI features including violation card controls, highlighting behavior, and a new dedicated Auto-Scan constant scanning mode subsection. Configuration option descriptions for defaultHighlight, logIssues, and report generation are refined to emphasize timing and behavior details. The development workflow commands section is updated to replace the playground build command with a module and client build command.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~8 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately summarizes the main changes: fixing a broken dev script command and tidying up README documentation wording.
Description check	✅ Passed	The description is directly related to the changeset, explaining the broken script fix, wording cleanups, and cosmetic corrections made to the README.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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