Correct npm version

README.md

@@ -33,7 +33,7 @@ Atom will automatically update when a new release is available.
 **Linux Requirements**
   * Ubuntu LTS 12.04 64-bit is the recommended platform
   * [node.js](http://nodejs.org/) v0.10.x
-  * [npm](http://www.npmjs.org/) v0.4.x
+  * [npm](http://www.npmjs.org/) v1.4.x
   * `sudo apt-get install libgnome-keyring-dev`
   * `npm config set python /usr/bin/python2 -g` to ensure that gyp uses Python 2