[bulk] validation: add missing description

Author: LSchaufMS

memdocs/configmgr/develop/core/understand/how-to-read-lazy-properties-by-using-wmi.md

@@ -1,6 +1,7 @@
 ---
 title: "Read Lazy Properties by Using WMI"
 titleSuffix: "Configuration Manager"
+description: "To read a lazy property from a Configuration Manager object returned in a query, you get the object instance, which in turn retrieves any lazy object properties from the SMS Provider."
 ms.date: "09/20/2016"
 ms.prod: "configuration-manager"
 ms.technology: configmgr-sdk

memdocs/configmgr/develop/reference/core/clients/sdk/applypolicyex-method-in-class-ccm_softwarecatalogutilities.md

@@ -1,6 +1,7 @@
 ---
 title: "ApplyPolicyEx Method"
 titleSuffix: "Configuration Manager"
+description: "The ApplyPolicyEx WMI class method that applies policy."
 ms.date: "09/20/2016"
 ms.prod: "configuration-manager"
 ms.technology: configmgr-sdk

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

@@ -1,6 +1,7 @@
 ---
 title: "SMS_TaskSequence_JoinDomainWorkgroupAction Class"
 titleSuffix: "Configuration Manager"
+description: "The SMS_TaskSequence_JoinDomainWorkgroupAction WMI class is an SMS Provider server class that represents a task sequence action that joins a Windows domain or a Windows workgroup."
 ms.date: "09/20/2016"
 ms.prod: "configuration-manager"
 ms.technology: configmgr-sdk

memdocs/configmgr/develop/reference/sum/sms_cm_updatepackageshistory-server-wmi-class.md

@@ -1,6 +1,7 @@
 ---
 title: "SMS_CM_UpdatePackagesHistory Class"
 titleSuffix: "Configuration Manager"
+description: "The SMS_CM_UpdatePackagesHistory WMI class is used to get a list of all update packages."
 ms.date: "09/20/2016"
 ms.prod: "configuration-manager"
 ms.technology: configmgr-sdk

memdocs/intune/user-help/how-do-i-find-the-serial-number-on-my-device-macos.md

@@ -2,7 +2,7 @@
 # required metadata
 
 title: How do I find the serial number on my macOS device?
-description:
+description: To locate the serial number, go to the Apple menu > About This Mac.
 keywords:
 author: lenewsad