Merge pull request #39880 from sagidlow/OTA-472-fix

Fixing a link error

Author: sagidlow

security/container_security/security-hosts-vms.adoc

@@ -28,7 +28,7 @@ ifndef::openshift-origin[]
 endif::[]
 * xref:../../installing/install_config/installing-customizing.adoc#installation-special-config-encrypt-disk_installing-customizing[Disk encryption]
 * xref:../../installing/install_config/installing-customizing.adoc#installation-special-config-chrony_installing-customizing[Chrony time service]
-* xref:../../updating/understanding-the-update-service.html#update-service-overview_understanding-the-update-service[{product-title} cluster updates]
+* xref:../../updating/understanding-the-update-service.adoc#update-service-overview_understanding-the-update-service[{product-title} cluster updates]
 
 // Virtualization versus containers
 include::modules/security-hosts-vms-vs-containers.adoc[leveloffset=+1]