Update index.js

Author: rwieruch

src/Link/index.js

@@ -1,7 +1,7 @@
 import React from 'react';
 
 const Link = ({ children, ...props }) => (
-  <a {...props} target="_blank">
+  <a {...props} target="_blank" rel="noopener noreferrer">
     {children}
   </a>
 );