fix typo

docs-ref-mapping/reference.yml

@@ -597,7 +597,7 @@
       uid: azure.java.sdk.landingpage.services.storage.Client
       landingPageType: Service
       children:
-      - - com.microsoft.azure.storage*
+      - com.microsoft.azure.storage*
     - name: Management
       uid: azure.java.sdk.landingpage.services.storage.management
       landingPageType: Service