Edit advanced docs

Author: viniciuspugliese

docs/Advanced.md

@@ -0,0 +1,17 @@
+# Advanced
+
+## Install by Composer:
+
+```sh
+$ composer require life-code/dynamic-menu
+```
+
+## Using:
+```sh
+<?php
+
+require('vendor/autoload.php');
+
+$dynamic_menu = new \DynamicMenu\DynamicMenu();
+
+```