Update README.md

Author: srihari-r

security/README.md

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 The Technology Engineering Security Specialists team provides end-end Oracle security coverage through CISO Office and Security Design. Our specialists work closely with Infra Security and Data Security specialists with a mission to transform the IT landscape of strategic customers into a secure, compliant, resilient, and successful workload deployment by evangelizing and applying Oracle’s leading security best practices and services.
 
+# Table of Contents
+ 
+1. [Team Publications](#team-publications)
+2. [Useful Links](#useful-links)
+3. [Reusable Assets Overview](#reusable-assets-overview)
+ 
+## Team Publications
+ 
+### Oracle Whitepaper
+ 
+- [Approaching Zero Trust Security with Oracle Cloud Infrastructure](https://www.oracle.com/a/ocom/docs/whitepaper-zero-trust-security-oci.pdf)
+    - How Oracle Cloud Infrastructure can help organizations adopt a Zero Trust Security model as recommended by the UK National Cyber Security Centre’s 8 principles
+ 
+### Oracle Blogs
+
+- [A huge step forward for Security Zones in Oracle Cloud Infrastructure](https://blogs.oracle.com/cloudsecurity/post/a-huge-step-forward-for-security-zones-in-oci)
+    -   Oracle announced custom Security Zones, which, as the name suggests, enables you to customise the security zone policies (referred to as recipes), disabling rules that are not appropriate for your deployments.
+      
+### <Category B (OPTIONAL)>
+ 
+- Name and Link
+    - Description
+ 
+## Useful Links
+ 
+- Name and Link
+    - Description
+ 
+## Reusable Assets Overview
+ 
+<OPTIONAL - remove if not needed>
+<If you don't have a flat hierarchy for assets, please describe your structure>
 # License
 
 Copyright (c) 2023 Oracle and/or its affiliates.
 
 Licensed under the Universal Permissive License (UPL), Version 1.0.
 
-See [LICENSE](https://github.com/oracle-devrel/technology-engineering/blob/folder-structure/LICENSE) for more details.
+See [LICENSE](https://github.com/oracle-devrel/technology-engineering/blob/folder-structure/LICENSE) for more details.