Update reference.yml

Author: JiayueHu

preview-packages/docs-ref-mapping/reference.yml

@@ -74,6 +74,14 @@
         landingPageType: Service
         children:
         - azure-arm-cognitiveservices
+    - name: Service Bus
+      uid: azure.nodejs.sdk.landingpage.services.servicebus
+      items:
+      - name: Client
+        uid: azure.nodejs.sdk.landingPage.services.servicebus.client
+        landingPageType: Service
+        children:
+        - '@azure/service-bus'        
     - name: Storage
       uid: azure.nodejs.sdk.landingpage.services.storage
       href: ~/docs-ref-services/storage.md
@@ -86,7 +94,6 @@
         - '@azure/storage-blob'
         - '@azure/storage-file'
         - '@azure/storage-queue'
-        - '@azure/service-bus'
       - name: Management
         uid: azure.nodejs.sdk.landingPage.services.storage.Management
         landingPageType: Service