modified readme

Author: oscarotero

README.md

@@ -46,6 +46,28 @@ $Info->providerName;
 $Info->providerUrl;
 ```
 
+Available options
+-----------------
+
+* minImageWidth (int): Minimal image width used to choose the main image
+* minImageHeight (int): Minimal image height used to choose the main image
+* getBiggerImage (bool): Returns the bigger image as the main image (instead the first found). This can make the request slower because it need to check the size of all images.
+* getBiggerIcon (bool): The same than getBiggerImage but used to choose the main icon
+* facebookAccessToken (string): Used to get info from facebook pages when these pages are not public and a access token is required
+* soundcloudClientId (string): Used to get info of links from soundcloud. By default, it uses "YOUR_CLIENT_ID" that its a valid client id :P
+* embedlyKey (string): If it's defined, get info from embedly service (only for know supported services and if the page doesn't have its own oembed service)
+
+```php
+$options = array(
+	'getBiggerImage' => true
+);
+
+$Url = new Embed\Url('https://www.youtube.com/watch?v=PP1xn5wHtxE');
+
+$Info = Embed\Embed::create($Url, $options);
+```
+
+
 Online demo
 -----------