Merge pull request firebase#4 from phansys/master

Updated README.md.

Author: anantn

README.md

@@ -4,24 +4,32 @@ PHP-JWT
 A simple library to encode and decode JSON Web Tokens (JWT) in PHP. Should
 conform to the [current spec](http://tools.ietf.org/html/draft-ietf-oauth-json-web-token-06)
 
+Installation
+------------
+
+Use composer to manage your dependencies and download PHP-JWT:
+
+```bash
+php composer require firebase/php-jwt
+```
+
 Example
 -------
 ```php
 <?php
-  include_once 'Authentication/JWT.php';
 
-  $key = "example_key";
-  $token = array(
+$key = "example_key";
+$token = array(
     "iss" => "http://example.org",
     "aud" => "http://example.com",
     "iat" => 1356999524,
     "nbf" => 1357000000
-  );
+);
 
-  $jwt = JWT::encode($token, $key);
-  $decoded = JWT::decode($jwt, $key);
+$jwt = JWT::encode($token, $key);
+$decoded = JWT::decode($jwt, $key);
 
-  print_r($decoded);
+print_r($decoded);
 ?>
 ```
 
@@ -30,12 +38,12 @@ Tests
 Run the tests using phpunit:
 
 ```bash
-    $ pear install PHPUnit
-    $ phpunit tests/
-    PHPUnit 3.7.10 by Sebastian Bergmann.
-    .....
-    Time: 0 seconds, Memory: 2.50Mb
-    OK (5 tests, 5 assertions)
+$ pear install PHPUnit
+$ phpunit --configuration phpunit.xml.dist
+PHPUnit 3.7.10 by Sebastian Bergmann.
+.....
+Time: 0 seconds, Memory: 2.50Mb
+OK (5 tests, 5 assertions)
 ```
 
 License