Update README.md

Author: magefan

README.md

@@ -108,6 +108,7 @@ http://software77.net/geo-ip/
   * [Magento 2 Price History](https://magefan.com/magento-2-price-history)
   * [Magento 2 Google Customer Reviews](https://magefan.com/magento-2-google-customer-reviews)
   * [Magento 2 Email Attachments](https://magefan.com/magento-2-email-attachments)
+  * [Magento 2 Cron Schedule](https://magefan.com/magento-2-cron-schedule) 
 
 ### [Magento 2 Blog Extensions](https://magefan.com/magento-2-extensions/blog-extensions)