chore: add arm templates redirect (#360)

Author: stijnmoreels

netlify.toml

@@ -67,6 +67,10 @@ to = "/:version/features/powershell/azure-api-management"
 from = "/features/powershell/azure-storage"
 to = "/features/powershell/azure-storage/azure-storage-table"
 
+[[redirects]]
+from = "/features/powershell/arm"
+to = "/features/powershell/templates/arm"
+
 [[redirects]]
 from = "/preview/features/powershell/azure-api-management"
 to = "/features/powershell/azure-api-management"