Update README and markdownlint rules

[sdwheeler]

PR Summary

Update README and markdownlint rules

• Fixes AB#548067

PR Checklist

• Descriptive Title: This PR's title is a synopsis of the changes it proposes.
• Summary: This PR's summary describes the scope and intent of the change.
• Contributor's Guide: I have read the contributors guide.
• Style: This PR adheres to the style guide.

[learn-build-service-prod]

PoliCheck Scan Report

The following report lists PoliCheck issues in PR files. Before you merge the PR, you must fix all severity-1 and severity-2 issues. The AI Review Details column lists suggestions for either removing or replacing the terms. If you find a false positive result, mention it in a PR comment and include this text: #policheck-false-positive. This feedback helps reduce false positives in future scans.

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[learn-build-service-prod]

Learn Build status updates of commit 760006c:

✅ Validation status: passed

File	Status	Preview URL	Details
.markdownlint.yaml	✅Succeeded
README.md	✅Succeeded

For more details, please refer to the build report.

[Copilot]

Pull request overview

Updates repository-facing documentation and refreshes markdownlint rule configuration.

Changes:

• Updated README metadata and refreshed repo description to include PSResourceGet.
• Refined README “Repository Structure” section (adds .devcontainer, reorganizes bullets/links).
• Revised .markdownlint.yaml by removing docsmd.* rules and adding configuration for MD054–MD060.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
README.md	Updates repo description and structure list; moves CabGen link references; refreshes ms.date.
.markdownlint.yaml	Removes docsmd.* settings and adds/expands markdownlint rule configuration (MD054–MD060).

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[Copilot]

The README references the old “Remote - Containers” extension name. VS Code renamed this to “Dev Containers”, so the description should be updated to avoid pointing contributors to a deprecated extension name.

Suggested change

	(VS Code) Remote - Containers extension
	(VS Code) Dev Containers extension

[learn-build-service-prod]

PoliCheck Scan Report

The following report lists PoliCheck issues in PR files. Before you merge the PR, you must fix all severity-1 and severity-2 issues. The AI Review Details column lists suggestions for either removing or replacing the terms. If you find a false positive result, mention it in a PR comment and include this text: #policheck-false-positive. This feedback helps reduce false positives in future scans.

✅ No issues found

More information about PoliCheck

Information: PoliCheck | Severity Guidance | Term
For any questions: Try searching the learn.microsoft.com contributor guides or post your question in the Learn support channel.

[learn-build-service-prod]

Learn Build status updates of commit b5483ab:

✅ Validation status: passed

File	Status	Preview URL	Details
.markdownlint.yaml	✅Succeeded
README.md	✅Succeeded

For more details, please refer to the build report.