docs: add the demo video link

[ComBba]

Replaces the README + devpost-text demo-video placeholders with the real, uploaded YouTube link (registered on the Devpost submission):

https://youtu.be/A9diFeRDybo — "Glasshat — the AI judge that audits itself · Gemini + Arize AX"

Docs-only, no code change.

Summary by CodeRabbit

릴리즈 노트

• Documentation
  • 데모 비디오 링크가 자리표시자에서 실제 YouTube URL로 업데이트되었습니다. 관련 문서의 데모 비디오 접근이 더욱 편리해졌습니다.

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[coderabbitai]

Caution

Review failed

Pull request was closed or merged during review

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: 0c812e78-209d-4a95-b293-ea19be036eff

📥 Commits

Reviewing files that changed from the base of the PR and between 952965a and 6fd4199.

📒 Files selected for processing (2)

• README.md
• claudedocs/2026-06-02-devpost-text.md

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Walkthrough

README.md와 claudedocs의 데모 영상 섹션에서 자리표시자 텍스트가 실제 YouTube 링크로 교체되었습니다. 두 문서 모두 동일한 YouTube 영상 URL을 참조합니다.

Changes

데모 영상 링크 추가

Layer / File(s)	Summary
Demo video link insertion README.md, claudedocs/2026-06-02-devpost-text.md	데모 영상 링크가 자리표시자에서 실제 YouTube URL(https://youtu.be/A9diFeRDybo)로 교체되었습니다. README의 줄 22와 devpost 문서의 줄 128이 동시에 업데이트되었습니다.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Poem

🐰 유튜브 링크가 나타났네요,
데모 영상이 기다렸어요,
자리표시자는 이제 안녕,
실제 영상으로 반짝반짝,
준비 완료! ✨

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	PR 제목이 변경사항의 주요 내용을 명확하게 요약하고 있습니다. README와 devpost-text 문서에서 데모 비디오 링크를 추가한 것이 정확하게 반영되어 있습니다.
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
• Commit unit tests in branch docs/demo-video-link

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[gemini-code-assist]

Code Review

This pull request updates the README.md and claudedocs/2026-06-02-devpost-text.md files to replace placeholder text with the actual YouTube link for the demo video. There are no review comments, and I have no feedback to provide.

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