Update README.md

fix links

Author: germanattanasio

README.md

@@ -45,7 +45,7 @@ applications:
 See the full [Getting Started][getting_started] documentation for more details, including code snippets and references.
 
 ## Running locally
-  The application uses [Node.js][http://nodejs.org/] and [npm][https://www.npmjs.com/] so you will have to download and install them as part of the steps below.
+  The application uses [Node.js](http://nodejs.org) and [npm](https://www.npmjs.com) so you will have to download and install them as part of the steps below.
 
 1. Copy the credentials from your `visual-recognition-service` service in Bluemix to `app.js`, you can see the credentials using: