npm-repo man page
npm-repo — Open package repository page in the browser
npm repo [<pkg>]
This command tries to guess at the likely location of a package's repository URL, and then tries to open it using the --browser config param. If no package name is provided, it will search for a package.json in the current folder and use the name property.
Default: OS X: "open", Windows: "start", Others: "xdg-open"
The browser that is called by the npm repo command to open websites.
npm help docs
npm help config