Update readme accordingly

(cherry picked from commit 5098937263fe4deb547612e1b5731e93955b6b2c)

README.md

@@ -1,15 +1,27 @@
-Minecraft Server Query
-======================
+# Minecraft Server Query
 
 [![Code Climate](https://img.shields.io/codeclimate/maintainability/sandfoxme/minecraft-query.svg?maxAge=2592000)](https://codeclimate.com/github/sandfoxme/minecraft-query)
 
 A PHP library for checking the status of an enabled Minecraft server ported from python
 [https://github.com/Dinnerbone/mcstatus](https://github.com/Dinnerbone/mcstatus)
 
-Usage
------
+## Installation
+
+Add the following code to your composer file.
+
+```json
+{
+    "require": {
+        "sandfox-im/bencode": "^1.0"
+    }
+}
+```
+
+## Usage
 
 ```php
+<?php
+
 $minecraft = new \SandFoxIM\Minecraft\ServerQuery($argv[1], $argv[2], 2);
 
 echo "Basic info:\n";