diff --git a/core/lib/Drupal/Core/CronInterface.php b/core/lib/Drupal/Core/CronInterface.php
index ed4828a..57374db 100644
--- a/core/lib/Drupal/Core/CronInterface.php
+++ b/core/lib/Drupal/Core/CronInterface.php
@@ -9,6 +9,8 @@
 
 /**
  * An interface for running cron tasks.
+ *
+ * @see https://www.drupal.org/cron
  */
 interface CronInterface {