Updated meta descriptions

Note: I did not look at the rest of the articles for flow, grammar, spelling, etc.

windows/client-management/mdm/rest-api-reference-windows-store-for-business.md

@@ -1,6 +1,6 @@
 ---
 title: REST API reference for Microsoft Store for Business
-description: REST API reference for Microsoft Store for Business
+description: REST API reference for Microsoft Store for Business--includes available operations and data structures.
 MS-HAID:
 - 'p\_phdevicemgmt.business\_store\_portal\_management\_rest\_api\_reference'
 - 'p\_phDeviceMgmt.rest\_api\_reference\_windows\_store\_for\_Business'

windows/client-management/mdm/win32appinventory-ddf-file.md

@@ -1,6 +1,6 @@
 ---
 title: Win32AppInventory DDF file
-description: Win32AppInventory DDF file
+description: See the OMA DM device description framework (DDF) for the **Win32AppInventory** configuration service provider. DDF files are used only with OMA DM provisioning XML.
 ms.assetid: F6BCC10B-BFE4-40AB-AEEE-34679A4E15B0
 ms.reviewer: 
 manager: dansimp

windows/client-management/troubleshoot-tcpip.md

@@ -1,6 +1,6 @@
 ---
 title: Advanced troubleshooting for TCP/IP issues
-description: Learn how to troubleshoot TCP/IP issues.
+description: Learn how to troubleshoot common problems in a TCP/IP network environment.
 ms.prod: w10
 ms.sitesec: library
 ms.topic: troubleshooting