This is Github version
See also see NPM version
If you put your README file in your repository's root, docs, or hidden .github directory, GitHub will recognize and automatically surface your README to repository visitors.
Originally the question was raised on Stackoverflow https://stackoverflow.com/questions/41297117/how-to-specify-different-readme-files-for-github-and-npm
Created with ❤︎ to stackoverflow community by @usulpro [React Theming]