usage added to readme

Author: eabay

README.md

@@ -1 +1,28 @@
-Object-Oriented approach to the [WordPress Settings API](http://codex.wordpress.org/Settings_API)
+Object-Oriented approach to the [WordPress Settings API](http://codex.wordpress.org/Settings_API)
+
+Usage
+=====
+<pre>
+$options = new WordPress_Settings(array(
+  'option_group' => 'sample_options',
+	'option_name' => 'sample_options',
+	'page_title' => 'vBulletin Connect Options',
+	'menu_title' => 'vBulletin Connect',
+	'capability' => 'administrator'
+));
+
+$options
+	->addSection(array('id' => 'general', 'title' => 'General Settings', 'callback' => ''))
+	->addField(array('key' => 'forum_path', 'title' => 'Forum Path (Relative)'))
+	->addSection(array('id' => 'authentication', 'title' => 'Authentication Settings', 'callback' => '<p>Authentication integration settings.</p>'))
+	->addField(array('key' => 'authentication', 'title' => 'Enable vBulletin Login', 'type' => 'checkbox'))
+	->addSection(array('id' => 'publishing', 'title' => 'Content Publish Settings', 'callback' => '<p>Posts are published to desired forum with the user of your choice.</p>'))
+	->addField(array('key' => 'publishing', 'title' => 'Enable Content Publishing', 'type' => 'checkbox'))
+	->addField(array('key' => 'publishing_forum_id', 'title' => 'Forum ID'))
+	->addField(array('key' => 'publishing_user_id', 'title' => 'User ID'))
+	->addField(array('key' => 'publishing_content_tpl', 'title' => 'Content Template', 'type' => 'textarea'))
+;
+
+add_action('admin_init', array($options, 'init'));
+add_action('admin_menu', array($options, 'addPage'));
+</pre>