Suplement readme

Author: jarst

README.md

@@ -1,8 +1,24 @@
 code-array
 ----------
+[![Build Status](https://travis-ci.org/jarst/code-array.svg?branch=master)](https://travis-ci.org/jarst/code-array)
+[![npm:](https://img.shields.io/npm/v/code-array.svg)](https://www.npmjs.com/packages/code-array)
+
 Simple utility module that will help you with converting:
  * strings to character code arrays
  * character code arrays to strings
 
+ ## Installation
+ `npm install code-array --save`
+
+ ## Example usage
+
+```
+ var codeArray = require('code-array');
+
+ var arr = codeArray.fromString('ABC'); // arr is  [65, 66, 67]
+
+ var str = codeArray.toString([65, 66, 67]); // str is 'ABC'
+ ```
+