added punctuation

Author: v-dirichards

articles/update-manager/support-matrix.md

@@ -23,7 +23,7 @@ The following types of updates are supported.
 **Operating system updates** - Azure Update Manager supports operating system updates for both Windows and Linux.
 
 >[!NOTE]
-> Update Manager allows you to view driver updates during assessment but does not currently support installing driver updates on your machines.
+> Update Manager allows you to view driver updates during assessment, but does not currently support installing driver updates on your machines.
 
 ## Microsoft application updates on Windows