Updated YAML, intro, and bookmarks

Author: Linda-Editor

docs/sp-add-ins/add-custom-columns-to-a-sharepoint-hosted-sharepoint-add-in.md

@@ -1,16 +1,12 @@
 ---
 title: Add custom columns to a SharePoint-hosted SharePoint Add-in
-ms.date: 10/26/2017
+description: Create custom column types, run the add-in, and test the columns.
+ms.date: 11/02/2017
 ms.prod: sharepoint
 ---
 
 # Add custom columns to a SharePoint-hosted SharePoint Add-in
 
-Learn how to include custom columns in SharePoint Add-ins.
- 
-> [!NOTE]
-> The name "apps for SharePoint" is changing to "SharePoint Add-ins." During the transition, the documentation and the UI of some SharePoint products and Visual Studio tools might still use the term "apps for SharePoint." For details, see [New name for apps for SharePoint](new-name-for-apps-for-sharepoint.md).
-
 This is the third in a series of articles about the basics of developing SharePoint-hosted SharePoint Add-ins. You should first be familiar with [SharePoint Add-ins](sharepoint-add-ins.md) and the previous articles in this series:
 
 -  [Get started creating SharePoint-hosted SharePoint Add-ins](get-started-creating-sharepoint-hosted-sharepoint-add-ins.md)