readme updated.

Author: syslogic

README.md

@@ -3,4 +3,6 @@
 I've created this composer project as a template, because I'm generally lazy.<br/>
 It has dependencies, simple methods and tests, as well as run configurations.
 
+See [Utilities for Google Cloud Platform](https://github.com/GoogleCloudPlatform/php-tools).
+
 [![PHP Composer](https://github.com/syslogic/php-cloudfunctions-quickstart/actions/workflows/ci-php.yml/badge.svg)](https://github.com/syslogic/php-cloudfunctions-quickstart/actions/workflows/ci-php.yml)