The README links to the license, the changelog, and the contributing guide
These three files answer whether a reader may use the project, what changed since they last looked, and how to send a fix. A link that resolves to nothing is worse than no link, because it costs a click to learn the file is missing.
Observable check
README.md contains links whose targets are the license file, CHANGELOG.md, and CONTRIBUTING.md, and each target exists in the repository.