Updating SP2019 Server Dev platform article

Author: VesaJuvonen

docs/general-development/sharepoint-2019-development-platform.md

@@ -1,11 +1,11 @@
 ---
-title: SharePoint 2019 development platform
+title: SharePoint Server 2019 development platform
 ms.date: 07/12/2018
 ms.prod: sharepoint
 ms.assetid: e0602381-ae11-41be-6a7e-9e47e9f246d6
 ---
 
-# SharePoint 2019 development platform
+# SharePoint Server 2019 development platform
 
 This article contains preliminary details around supported development capabilities in the SharePoint 2019.
 
@@ -17,20 +17,28 @@ This article contains preliminary details around supported development capabilit
 * Modern and classic pages
 * Modern sites - modern team and communication site
     * Classic sites are also supported
+* Column formatting
 * SharePoint Framework client-side web parts
-* SharePoint Framework extensions
-* Webhooks as in SharePoint Online
+* SharePoint Framework extensions in modern experiences
+* Webhooks for list items
 * Asset packaging and automatic JavaScript file hosting from app catalog
-* Column formatting
+* "Tenant" scoped deployment of SharePoint Framework solutions
+* ALM APIs for add-in and SharePoint Framework solution management
 
 **Not supported capabilities**
 
 * Site Designs and Site Scripts
 * Hub sites
 * Site collection app catalog
 * "Tenant" properties
+* Custom modern themes for communication site or modern team site
 
-Supported SharePoint Framework version for the SharePoint 2019 will be SharePoint Framework v1.4.1. SharePoint Framework Yeoman generator will be updated to have this option included in the version selection. 
+Supported SharePoint Framework version for the SharePoint 2019 will be SharePoint Framework v1.4.1 (except Microsoft Graph APIs). SharePoint Framework Yeoman generator will be updated to have this option included in the version selection. 
 
 > [!NOTE] 
 > If you need to write SharePoint Framework components for SharePoint 2019 before Yeoman generator is updated, you can install SharePoint Framework 1.4.1 and use that as the generator for your SharePoint 2019 components. You should use the 'Online' option in this case, when the environment question is asked in the Yeoman solution flow.
+
+## See also
+
+- [Introduction to SharePoint Server 2019 Preview development platform](https://developer.microsoft.com/en-us/sharepoint/blogs/introduction-to-sharepoint-server-2019-preview-development-platform/)
+- [Introduction to SharePoint Server 2019 Preview development platform](https://www.youtube.com/watch?v=IAirEcf_DFc) YouTube video