Update config.php

Author: rap2hpoutre

src/config/config.php

@@ -1,9 +1,43 @@
 <?php
 return [
+    /*
+    |--------------------------------------------------------------------------
+    | Slack notification
+    |--------------------------------------------------------------------------
+    |
+    | Whenever you `Log::error('some error');`, that error's message will be
+    | sent to the Slack channel you have setup. Please note this "bubbles up" 
+    | which means it will be sent to the Slack channel for any logging done 
+    | error and up, error, critical, alert, and emergency. You can disable it
+    | by passing an empty array to `env` property
+    |
+    */
     'slack' => [
+        /**
+         * Your slack token. 
+         * 
+         * Go to the authorization page (https://api.slack.com/web#auth) and 
+         * generate a new token
+         */
         'token' => 'your-token',
+        
+        /**
+         * Slack channel (encoded ID or name)
+         * 
+         * Send the message to an existing '#channel' or 'private-group'
+         */
         'channel' => '#general',
+        
+        /**
+         * The name of the bot
+         */
         'username' => 'Error Bot',
-        'env' => 'production'
+        
+        /**
+         * Slack notification triggers on this environment
+         * 
+         * String or array. Empty array means disabled.
+         */
+        'env' => 'production' //
     ]
 ];