Update README.md

Author: ocisec

cloud-infrastructure/infrastructure-security/bastion/README.md

@@ -1,21 +1,27 @@
 # Bastion
 
-<Product description>
+Oracle Cloud Infrastructure Bastion provides restricted and time-limited access to target resources that don't have public endpoints.
 
 # Table of Contents
 
-1. [Team Publications](#team-publications)
-2. [Useful Links](#useful-uinks)
+1 [Useful Links](#useful-uinks)
 
-## Team Publications
+<!--## Team Publications -->
 
-- [Hello word](https://wwww.oracle.com)
-    - This my favorite link
 
 ## Useful Links
 
-- Name and Link
-    - Description
+- [OCI Bastion Overview](https://www.oracle.com/uk/security/cloud-security/bastion/)
+    - This page provides the overview of the OCI Bastion Service
+      
+- [OCI Bastion Documentation](https://docs.oracle.com/en-us/iaas/Content/Bastion/Concepts/bastionoverview.htm)
+    - This page provides the detailed documentation of the OCI Bastion Service
+
+- [OCI Bastion FAQs](https://www.oracle.com/uk/security/cloud-security/bastion/faq/)
+    - This page provides the answers to most frequently asked questions about OCI Bastion
+
+- [OCI Bastion Demo Video](https://www.youtube.com/watch?v=MkM_fJbFjJg)
+    - This is the demo video of OCI bastion service
 
 # License