renaming files and adding to TOC

Author: axisc

articles/event-hubs/TOC.yml

@@ -156,6 +156,8 @@
           href: https://github.com/Azure-Samples/azure-messaging-replication-dotnet/tree/main/functions/config/ServiceBusCopyToEventHub
     - name: Reliability
       items:
+        - name: Best practices for business continuity and disaster recovery
+          href: event-hubs-business-continuity-outages-disasters.md
         - name: Availability zones and disaster recovery
           href: ../reliability/reliability-event-hubs.md?toc=/azure/event-hubs/toc.json
         - name: Geo-replication