[Repo] fix: Address Copilot feedback on community docs

[finallyjay]

Summary

• PR template: add markdownlint-disable MD041 to prevent lint failure on headless template
• Code of Conduct: fix "contributes" → "contribute" grammar, replace public issue reporting with private advisory link, correct attribution from "adapted from v2.1" to "inspired by"
• Security: remove mention of email contact (none provided), keep only the private advisory path
• Support: add security disclosure bullet pointing to SECURITY.md, use reference-style links to stay under 80 chars

Addresses Copilot review comments from PRs #18, #19, #20, #21.

Test plan

• Verify markdownlint passes
• Verify private advisory link works in CODE_OF_CONDUCT.md and SECURITY.md

🤖 Generated with Claude Code

[Copilot]

Pull request overview

Updates community documentation to address prior review feedback and keep Markdown linting green across the repo’s community health files.

Changes:

• Add markdownlint-disable MD041 to the PR template to avoid first-line-heading lint failures.
• Update SECURITY.md and SUPPORT.md to steer vulnerability reports to private GitHub Security Advisories.
• Refine CODE_OF_CONDUCT.md wording and enforcement/reporting guidance, and adjust attribution language.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 4 comments.

File	Description
SUPPORT.md	Switches issue links to reference-style and adds a security disclosure pointer to SECURITY.md.
SECURITY.md	Removes email-contact language and keeps a private advisory reporting path.
CODE_OF_CONDUCT.md	Fixes grammar, changes reporting guidance to private advisory, and adjusts attribution phrasing.
.github/pull_request_template.md	Disables MD041 to prevent markdownlint failures on a headless template.

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[Copilot]

The reference-style link definitions include full GitHub URLs that exceed the repo’s MD013 line_length 80 setting, so markdownlint will still fail on these lines. Consider switching to shorter relative links (e.g., using ../../issues/new?... so GitHub resolves to the repo’s issue form) or otherwise ensuring the link target fits within 80 characters.

[Copilot]

This inline link line exceeds the repo’s MD013 line_length 80 setting due to the full advisory URL, which will cause markdownlint to fail. Consider using a shorter relative link (e.g., ../../security/advisories/new) so the line stays within 80 characters.

[Copilot]

This line exceeds the repo’s MD013 line_length 80 setting due to the full advisory URL, which will cause markdownlint to fail. Consider using a shorter relative link (e.g., ../../security/advisories/new) so the line stays within 80 characters.

[Copilot]

The Code of Conduct “Enforcement” section directs behavior/harassment reports to the GitHub Security Advisory flow, which is specifically designed for vulnerability disclosure. This may confuse reporters and mix conduct incidents into a security workflow; consider providing a dedicated private contact path for conduct reports (or explicitly stating that advisories are being used as the private reporting channel for CoC incidents).