add document to README.md

README.md

@@ -1,2 +1,40 @@
 # vandar-laravel
 laravel library for vandar gateway
+
+##Installation
+###step 1
+run this command :  
+``composer require rfmhb2/vandar-laravel``
+###step 2
+add this to ``config/services.php``
+```php 
+ 'vandar' => [
+        'api' => '6cc20e798ba30a2f352c0bf7ebfed11158af14b7',
+        'test' => false
+    ]
+```
+you can find your api in [vandar dashboard](dash.vandar.io).  
+##Usage
+before stating usage of this package first add this line top of the class
+```php
+use Vandar\Laravel\Facade\Vandar;
+```
+first you most send payment request like this
+```php
+$result = Vandar::request($amount, $mobile = null, $factorNumber = null, $description = null, $callback);
+```
+and save ``$result['token']`` for verify payment.  
+now you can redirect user to gateway
+```php
+Vandar::redirect();
+//or 
+Vandar::redirectUrl();
+```
+when user done payment, vandar redirect user to ``$callback`` with a token in url. you can verify payment with pass token to verify method like this
+```php
+$token=$_GET['token'];
+$result = Vandar::verify($token);
+```
+you can read more about responses and api [here](https://docs.vandar.io/).
+## bug report
+if you find a bug add [issue](https://github.com/rfmhb2/vandar-laravel/issues)