[bulk] Validation: add missing descriptions.

Author: LSchaufMS

memdocs/configmgr/develop/core/understand/how-to-handle-configuration-manager-asynchronous-errors-by-using-managed-code.md

@@ -1,6 +1,7 @@
 ---
 title: "Handle Asynchronous Errors by Using Managed Code"
 titleSuffix: "Configuration Manager"
+description: "To handle a Configuration Manager error raised during an asynchronous query, test the RunWorkerCompletedEventArgs parameter Error Exception property passed to the SmsBackgroundWorker.QueryProcessorCompleted event handler."
 ms.date: "09/20/2016"
 ms.prod: "configuration-manager"
 ms.technology: configmgr-sdk

memdocs/configmgr/develop/reference/osd/sms_usersettings-server-wmi-class.md

@@ -1,6 +1,7 @@
 ---
 title: "SMS_UserSettings Class"
 titleSuffix: "Configuration Manager"
+description: "The SMS_UserSettings class describes attributes that are specific to a single user that is managed by Configuration Manager."
 ms.date: "09/20/2016"
 ms.prod: "configuration-manager"
 ms.technology: configmgr-sdk