Update toc.yml

Author: guywi-ms

articles/azure-monitor/toc.yml

@@ -100,6 +100,8 @@ items:
     href: ../sentinel/forward-syslog-monitor-agent.md?bc=%2fazure%2fazure-monitor%2fbreadcrumb%2ftoc.json&toc=%2fazure%2fazure-monitor%2ftoc.json
   - name: Self-monitoring
     href: monitor-azure-monitor.md 
+  - name: Migrate from Splunk to Azure Monitor Logs
+    href: logs/migrate-splunk-to-azure-monitor-logs.md 
 - name: Samples
   items:
   - name: Resource Manager templates