Update titles/getting-started-with-rhdh-on-ocp-for-the-platform-engineer/master.adoc

Author: themr0c

titles/getting-started-with-rhdh-on-ocp-for-the-platform-engineer/master.adoc

@@ -19,6 +19,7 @@ For performance::
 * Enable assets caching to an external Redis database.
 
 For security::
+* Use secure connections to your external services.
 * Provision users and enable authentication.
 * Enable role-based access control, and configure the permission policy by using the Web UI.