Add PHP rate limiter

Author: szepeviktor

wp-config/wp-config.php

@@ -35,6 +35,14 @@
 
 /** Security. */
 
+/**
+ * PHP rate limiter
+ *
+ * @see https://github.com/szepeviktor/php-rate-limiter
+ */
+
+require __DIR__ . '/rate-limiter.php';
+
 /**
  * composer require szepeviktor/waf4wordpress
  * Copy mu-plugins/waf4wordpress.php