Update reference.yml

docs-ref-mapping/reference.yml

@@ -119,11 +119,11 @@
       - com.microsoft.azure.datalake.store.retrypolicies
   - name: DNS
     uid: azure.java.sdk.landingpage.services.dns
-    landingPageType: Service
+    href: ~/docs-ref-services/dns.md
     items:
     - name: Management API
       uid: azure.java.sdk.landingpage.services.dns.Management API
-      href: ~/docs-ref-services/dns.md
+      landingPageType: Service
       children:
       - com.microsoft.azure.management.dns*
   - name: Event Hubs