Merge pull request #668 from oracle-devrel/NicolaCimitile-patch-5

Update README.md

Author: NicolaCimitile

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

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 # Operations Advisory
 
 The Operations Advisory provides critical guidance to Customers on how to define their operations. Operations Excellence Advisory 'Approach Workshop' advises on best practices and their benefits from Oracle based on previous experiences and is meant to identify  an outline for Day-2 optimal operations, based on  priorities and requirements for DR, Integrations, O&M also in the following scenarios: Hybrid, Multi-cloud, DRCC. Where needed, Automation advice is also included.
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+- [Multi-cloud operations - 3rd party tools that support OCI](https://learnoci.cloud/multi-cloud-operations-3rd-party-tools-that-support-oci-091207d923ed)
+  
 # Public Assets
 
 OS Management: The Oracle OCI OS Management Service allows users to control the update process of Oracle Cloud Infrastructure (OCI) compute instances. By default, the update of a compute instance installs the latest available packages and patches. Just installing what is available might impact critical installed applications. It might also be desirable to keep the number of configuration variants low by ensuring all or groups of instances have the exact same versions of packages and patches installed. 
 
 - [OS Management](https://github.com/hoehenunterschied/OSManagement)
+- [How to use OS Management Resource Discovery to monitor your Compute resources](https://learnoci.cloud/how-to-use-os-management-resource-discovery-to-monitor-your-compute-resources-bf19800f51fe)
 
 # Cloud Coaching Clinic