Update README.md

Multi-cloud observability using OCI Monitoring

Author: NicolaCimitile

manageability-and-operations/observability-and-manageability/README.md

@@ -34,6 +34,7 @@ Reviewed: 13/11/2023
 - [Using Pulumi to create OCI resource](https://karthicin.medium.com/using-pulumi-to-create-oci-resource-1e685a7d25fb)
 - [How to monitor Weblogic in OCI and collect logs for analysis](https://karthicin.medium.com/how-to-monitor-weblogic-in-oci-and-collect-logs-for-analysis-7c5007426010)
 - [How to run Velociraptor in OCI Container Instance](https://learnoci.cloud/how-to-run-velociraport-in-oci-container-instance-7adfb75d1df8)
+- [Multi-cloud observability using OCI Monitoring](https://karthicin.medium.com/multi-cloud-observability-using-oci-monitoring-8fa87f9c5e84)
 
 ## Cloud Coaching Clinics (Videos)