README.md explained
What is README.md?
README.md is the main introduction file for a project. It tells humans and AI tools what the project is, why it matters, and how to use it.
README.md meaning
`README.md` is a Markdown file usually placed at the root of a repository or project folder. On platforms like GitHub, it is automatically displayed as the project homepage, making it the first document many users and contributors read.
What should README.md include?
- Project name and short summary
- Who the project is for
- Installation or setup steps
- Usage examples
- Configuration notes
- Links to docs, support, license, and contribution rules
How AI tools use README.md
AI coding assistants often read README.md to understand the purpose of a project before editing files. A clear README gives the model better context, which can improve code changes, explanations, documentation updates, and generated setup instructions.
README.md vs AGENTS.md
README.md is primarily for humans and public project context. AGENTS.md is primarily for coding agents and contains rules about commands, style, testing, and workflows. Use both when a project needs strong human and AI guidance.
Edit and preview README.md
Use Markdown Docs online editor to preview README content in your browser, or download Markdown Docs for local Windows editing.
Related references
- GitHub Docs: About READMEs for official README guidance.
- GitHub Markdown syntax for Markdown formatting basics.
FAQ
Is README.md required?
No, but most projects should have one because it explains what the project does and how to use it.
Where should README.md be placed?
Place README.md at the project or repository root so tools like GitHub and AI coding agents can find it easily.
Can README.md help SEO?
For public projects, yes. A clear README can rank for brand and project terms and can attract links when it answers setup and usage questions.