Merge pull request #461 from oracle-devrel/NicolaCimitile-patch-4

Update README.md

Author: mfioramo

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

@@ -25,6 +25,8 @@ The Observability and Manageability (O&M) platform is a set of Oracle Cloud Infr
 
 - [How to leverage OCI Observability tools to gain visibility into your Cloud Infrastructure](https://www.youtube.com/watch?v=bFnWYZCOvVk)
 - [Enrich Oracle Enterprise Manager Cloud Control with Machine Learning](https://www.youtube.com/watch?v=KPmDyCGZKi8)
+- [Unveiling the Power of OCI Observability, A Short Tour and Best Practices](https://youtu.be/KEF0NeptJa8)
+- [OCI Monitoring Integration with Third-Party SIEM](https://youtu.be/UPdPZPWOZIs)
 
 # Useful Links