Fix typo: Manger -> Manager

Author: changeworld

articles/update-manager/extended-security-updates.md

@@ -35,7 +35,7 @@ To enroll in Windows Server 2012 Extended Security Updates on Arc connected mach
 ## Next steps
 
 - Learn about the [supported regions for Azure VMs and Arc-enabled servers](supported-regions.md).
-- Learn on the [Update sources, types](support-matrix.md) managed by Azure Update Manger.
+- Learn on the [Update sources, types](support-matrix.md) managed by Azure Update Manager.
 - Know more on [supported OS and system requirements for machines managed by Azure Update Manager](support-matrix-updates.md).
 - Learn on [Automatic VM guest patching](support-matrix-automatic-guest-patching.md).
 - Learn more on [unsupported OS and Custom VM images](unsupported-workloads.md).