monitoring sample added

examples/monitoring.php

@@ -0,0 +1,27 @@
+<?php
+require_once __DIR__ . '/../vendor/autoload.php';
+
+use RouterOS\Client;
+use RouterOS\Config;
+use RouterOS\Query;
+
+// Create config object with parameters
+$config =
+    (new Config())
+        ->set('host', '127.0.0.1')
+        ->set('port', 8728)
+        ->set('pass', 'admin')
+        ->set('user', 'admin');
+
+// Initiate client with config object
+$client = new Client($config);
+
+// Build monitoring query
+$query =
+    (new Query('/interface/monitor-traffic'))
+        ->equal('interface', 'ether1')
+        ->equal('once');
+
+// Ask for monitoring details
+$out = $client->query($query)->read();
+print_r($out);