update readme

Author: grkamil

README.md

@@ -56,3 +56,23 @@ For using this package you need to create Telegram bot
 3. Set up name and bot-name for your bot.
 4. Get token and add it to your .env file (it is written above)
 5. Go to your bot and send ``/start`` message
+
+## Lumen support
+
+To make it work with Lumen, you need also run two steps:
+
+1. Place config/telegram-logger.php file with following code:
+```php
+<?php
+
+return [
+    // Telegram logger bot token
+    'token' => env('TELEGRAM_LOGGER_BOT_TOKEN'),
+
+    // Telegram chat id
+    'chat_id' => env('TELEGRAM_LOGGER_CHAT_ID')
+];
+```
+
+2. Uncomment ```$app->withFacades();``` and configure the file ```$app->configure('telegram-logger');``` at bootstrap/app.php
+3. Place default Laravel/Lumen logging file to config/logging.php (to add new channel).