Removing 'preview' stamp from tenant properties - GA'd and roadmap update

Author: VesaJuvonen

docs/spfx/roadmap.md

@@ -26,6 +26,7 @@ First release of the SharePoint Framework contained only support for client-side
 - Easy access to Graph API to access user specific information (GraphHttpClient in preview)
 - Site level WebHooks
 - Updated 'store' story with SharePoint Framework support
+- 'Store' story for SharePoint Framework solutions with easy distribution channel for ISVs 
 
 ## Client-side web parts++ and add-ins
 

docs/spfx/tenant-properties.md

@@ -1,8 +1,5 @@
 # SharePoint Online Tenant Properties
 
-> [!NOTE]
-> Tenant Properties capability is currently in preview in First Release and is subject to change. They are currently not supported for use in production environments.
-
 Tenant Properties allow tenant administrators to add properties in the app catalog that can be read by various SharePoint Framework components. The Tenant Properties are managed by tenant administrators using the [Microsoft SharePoint Online Management Shell](https://technet.microsoft.com/en-us/library/fp161372.aspx) which is a PowerShell module to manage your SharePoint Online subscription in the Office 365.
 
 ## Manage tenant properties