update node version coloring for modern versions
update node version coloring for modern versions

expressjs/badgeboard,repo-utils/badgeboard,jshttp/jshttp.github.io,repo-utils/badgeboard,jshttp/jshttp.github.io,pillarjs/pillarjs.github.io,react-component/badgeboard,expressjs/badgeboard,pillarjs/pillarjs.github.io,react-component/badgeboard