updated doc

Author: h7io

README.md

@@ -1,3 +1,23 @@
 # DropdownImageField
 
+Adds a `DropdownImageField` field which enables you to display images alongside the captions.
+Uses a plugin for Chosen.js (which is used by SS), [Image-Select](https://github.com/websemantics/Image-Select). The plugin is modified.
+
 ![Working screenshot](https://github.com/Copperis/DropdownImageField/raw/master/docs/img/ss.png)
+
+## Usage
+
+Example:
+
+```php
+DropdownImageField::create('LanguageID', 'Select language', 
+	LanguageObj::get(), // Source for items.
+	'ID',		// Key field on item.
+	'Title',	// Caption field on item.
+	'Icon'		// Image field on item. Can be a method/relation that returns an image.
+)
+```
+
+## Notes
+
+This plugin uses a `setTimeout` function with additional parameters. A polyfill is loaded to support IE9 and lower.

_config.php

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-<?php