fixed the issues

Author: spelluru

articles/event-hubs/TOC.yml

@@ -191,6 +191,7 @@
     - name: Resource Manager exceptions
       href: resource-manager-exceptions.md
 - name: Reference
+  items:
   - name: .NET
     items:
     - name: Client library

articles/event-hubs/event-processor-balance-partition-load.md

@@ -88,6 +88,6 @@ By default, event processor or consumer is thread safe and behaves in a synchron
 See the following quick starts:
 
 - [.NET Core](get-started-dotnet-standard-send-v2.md)
-- [Java](get-started-java-send-v2.md)
+- [Java](event-hubs-java-get-started-send.md)
 - [Python](get-started-python-send-v2.md)
 - [JavaScript](get-started-node-send-v2.md)