Fixed broken link on index (mongodb#711)

Author: caitlindavey

source/index.txt

@@ -130,7 +130,7 @@ Take the free online course taught by MongoDB instructors
    * - .. figure:: /includes/figures/M220JS_hero.jpg
           :alt: Banner for the MongoDB University Node.js Course
 
-     - `Using MongoDB with Node.js <https://learn.mongodb.com/learning-paths/using-mongodb-with-nodejs-y13d>`_
+     - `Using MongoDB with Node.js <https://learn.mongodb.com/learning-paths/using-mongodb-with-nodejs>`_
 
        Learn the essentials of Node.js application development with MongoDB.