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+## Contributing
+
+- [`dev`](https://github.com/picocss/pico/tree/dev) branch is open to pull requests.
+- Do not edit [`/css`](https://github.com/picocss/pico/tree/master/css) files directly. Edit the source files in [`/scss`](https://github.com/picocss/pico/tree/master/scss), then recompile the [`/css`](https://github.com/picocss/pico/tree/master/css) files with `npm run build`.
+- Do not edit [`/docs/*.html`](https://github.com/picocss/pico/tree/master/docs) files directly. Edit the source files in [`/docs/src`](https://github.com/picocss/pico/tree/master/docs/src), then recompile the docs files with `npm run build`.