This command tries to guess at the likely location of a package's
documentation URL, and then tries to open it using the --browser
config param. You can pass multiple package names at once. 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 docs command to open websites.