Added link to parent topic

Author: Linda-Editor

docs/solution-guidance/modern-experience-customizations-provisioning-sites.md

@@ -123,6 +123,7 @@ If you provision a subsite under the root site of a "modern" site collection, su
 
 ## Additional resources
 
+- [Customizing the "modern" experiences in SharePoint Online](modern-experience-customizations.md)
 - [What is a SharePoint team site?](https://support.office.com/en-US/article/What-is-a-SharePoint-team-site-75545757-36c3-46a7-beed-0aaa74f0401e?ui=en-US&rs=en-US&ad=US)
 - [Create a team site in SharePoint Online](https://support.office.com/en-US/article/Create-a-team-site-in-SharePoint-Online-ef10c1e7-15f3-42a3-98aa-b5972711777d)
 - [Manage site creation in SharePoint Online](https://support.office.com/en-us/article/Manage-site-creation-in-SharePoint-Online-e72844a3-0171-47c9-befb-e98b23e2dcf9?ui=en-US&rs=en-US&ad=US)