retext-preset-github is a retext preset providing sensible settings for analyzing text similar to how GitHub does. It includes plugins to check for contractions, repeated words, indefinite articles, and more, aligning with GitHub's writing style guidelines. Use this preset to improve clarity, conciseness, and accessibility in your documentation, commit messages, and other text-based assets, ensuring a consistent and professional tone reminiscent of GitHub's open-source environment. It offers practical suggestions for refining your writing.