updates readme with license and dependency info

README.md

@@ -2,6 +2,16 @@
 
 A Node.js package for accessing NPR APIs.
 
+## Requirements
+
+This module is a [npm](https://www.npmjs.org) package, and requires
+the latest stable version of [node.js](https://nodejs.org).
+
+```
+$ node -v
+v0.12.7
+```
+
 ## Installation
 
 ```
@@ -16,6 +26,9 @@ are more examples in the `test` directory.
 
 **Example:** getting recommendations for your user
 ```
+// paste into a file called index.js,
+// and edit the credentials to match
+// your account info.
 var NPR = require('npr-api');
 
 var npr = NPR({
@@ -32,3 +45,18 @@ npr.one.init()
   }).catch(console.err);
 
 ```
+
+Then you can run this example by running:
+
+```
+$ node index.js
+```
+
+## Contributing
+In lieu of a formal styleguide, take care to maintain the existing
+coding style. Add unit tests for any new or changed functionality.
+Lint and test your code using [Gulp](http://gulpjs.com/).
+
+## License
+
+Copyright (c) 2015 Adafruit Industries. Licensed under the MIT license.