update linklisttype

Author: b-ahibbard

articles/azure-netapp-files/index.yml

@@ -12,7 +12,7 @@ metadata:
   ms.author: anfdocs
   ms.date: 12/13/2023
 
-# linkListType: architecture | concept | deploy | download | get-started | how-to-guide | learn | overview | quickstart | reference | sample | tutorial | video | whats-new
+# linkListType: architecture | concept | deploy | download | get-started | how-to-guide | train | overview | quickstart | reference | sample | tutorial | video | whats-new
 
 landingContent:
   # Card