fixing-typo

Author: pdtoal

security/ciso-office/shared-assets/oci_iam_adding_group_to_admin_role/readme.md

@@ -20,7 +20,7 @@ For this tutorial, I will be using POSTMAN and the collection provided by Oracle
 
 ## Pre-requisites
 
-- Administrative access to an OCI IAM identiy domain (or its predecessor, IDCS)
+- Administrative access to an OCI IAM identity domain (or its predecessor, IDCS)
 - Configuration of Postman and the OCI IAM collection as explained [here](https://www.oracle.com/webfolder/technetwork/tutorials/obe/cloud/idcs/idcs_rest_postman_obe/rest_postman.html)
 - Obtained an OAUTH Access Token through the REST API to enable authenticated REST API calls to IAM