add sendy config file values

Author: ousid

config/sendy.php

@@ -1,6 +1,27 @@
 <?php
 
-// config for Coderflex/LaravelSendy
 return [
+    /*
+    |--------------------------------------------------------------------------
+    | Sendy Installation URL
+    |--------------------------------------------------------------------------
+    |
+    | This URL is used to connect to your Sendy installation. It should
+    | point to the root of your Sendy installation. For example:
+    | https://your-sendy-installation.com
+    */
+    'sendy_installation_url' => env('SENDY_INSTALLATION_URL', 'https://your-sendy-installation.com'),
 
+    /*
+    |--------------------------------------------------------------------------
+    | Sendy API Key
+    |--------------------------------------------------------------------------
+    |
+    | This key is used to authenticate your application with the Sendy
+    | installation. You can find your API key in the Sendy settings.
+    | Make sure to keep this key secure and do not share it with anyone.
+    | It is recommended to use environment variables to store sensitive
+    | information like API keys. You can set the SENDY_API_KEY
+    */
+    'sendy_api_key' => env('SENDY_API_KEY', 'your-sendy-api-key'),
 ];