docs: remove outdated citation tips from README.md

[BjornMelin]

This pull request makes a minor update to the README.md file by removing a tip about GitHub's citation metadata support. No functional or code changes are included.

[coderabbitai]

Walkthrough

The change removes a tip block from README.md that contained instructions for citing the repository using CITATION.cff and included a link to GitHub documentation. The modification results in a net deletion of 3 lines from the documentation file, with no additions to the codebase. This alteration does not affect any exported or public entity declarations.

🚥 Pre-merge checks | ✅ 7

✅ Passed checks (7 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately describes the main change: removing outdated citation tips from README.md, which aligns with the file-level summary and PR objectives.
Description check	✅ Passed	The description is directly related to the changeset, stating that the PR removes a tip about GitHub's citation metadata support from README.md with no functional changes.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
React + Next.Js Best Practices	✅ Passed	The custom check for React + Next.js Best Practices is not applicable to this PR. The PR exclusively modifies README.md by removing outdated documentation text—it contains no functional code changes, React components, Next.js implementations, or client-side code.
Docstring & Research Standards	✅ Passed	This pull request passes all applicable quality gates. Gate 0 (mandatory Biome CI) passed with exit code 0 and zero diagnostics. Gates 1-5 do not apply as this PR only modifies README.md with no code changes.
Web Interface Guidelines	✅ Passed	Web Interface Guidelines not applicable; PR only modifies README.md documentation without web interface code or UI implementation elements.
Google Python Style Compliance	✅ Passed	Google Python Style Compliance check is not applicable; PR only modifies README.md with no Python code changes in this TypeScript/JavaScript project.

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✨ Finishing touches

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📥 Commits

Reviewing files that changed from the base of the PR and between 46761de and 9976b9d.

📒 Files selected for processing (1)

• README.md

💤 Files with no reviewable changes (1)

• README.md

🧰 Additional context used

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Summary of Additional Context Found

Project Overview

This pull request is for the codex-toolloop repository, described as: "Build agentic coding workflows with OpenAI Codex ToolLoop: Based on the Codex app-server and Vercel AI SDK v6, codex exec automation, JSONL events, structured outputs, dynamic tools, MCP, Vitest, and Biome."

Exact Changes in the PR

The diff shows the removal of 3 lines at the end of README.md:

• An empty line
• A tip paragraph: "Tip: GitHub supports citation metadata via CITATION.cff (optional). If you add it at the repo root, GitHub can display a 'Cite this repository' widget automatically."
• A URL link to GitHub's citation documentation

GitHub's CITATION.cff Support Status

GitHub actively supports CITATION.cff files. When you add a CITATION.cff file to the default branch of your repository, "a link is automatically added to the repository landing page in the right sidebar, with the label 'Cite this repository.' This makes it easy for other users to cite your software project."

GitHub's citation feature displays citation information in APA and BibTeX formats, and works with the repository landing page to show the "Cite this repository" widget.

Industry Best Practices

The Citation File Format (CFF) is widely supported by major platforms: GitHub displays citation widgets, Zenodo uses CFF metadata during GitHub-Zenodo integration, and Zotero reference manager can import citation metadata from CITATION.cff files.

Repository Context

The repository does not currently have a CITATION.cff file. The tip being removed suggested adding one as an optional enhancement for better citation discoverability.

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Key Observation for Review: The removed tip is technically still accurate—GitHub does support CITATION.cff files and will display a citation widget automatically. Whether calling this "outdated" is justified depends on the project's decision to either (1) add a CITATION.cff file to replace the tip, or (2) intentionally remove citation guidance from the README entirely.

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[Copilot]

Pull request overview

Removes an outdated README tip related to GitHub citation metadata support, keeping the documentation focused and current.

Changes:

• Removed the README note/link about adding a CITATION.cff file for GitHub’s “Cite this repository” widget.

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