Workshop Modification - WMS ID: 11514 (#324)

* wip

* Add managing-credentials-using-oci-vault content.

* Create CNAME

* Delete CNAME

* Fix typo and add ssh section.

* Minor change.

* Update copyright.

* Support user account.

* Minor change.

* Fix the QA issues.

* Addressing the review comments.

* Update the note.

* Add a note for the error.

* Fix the note.

---------

Co-authored-by: El Houcine Es Sanhaji <el.houcine.es.sanhaji@oracle.com>

managing-credentials-using-oci-vault/setup-oci-vault/oci-vault-setup-sandbox.md

@@ -67,6 +67,9 @@ We will now create a Vault in the target compartment, then add a key that will b
 11. Select 256 bits from the Key Shape
 12. Click Create Key button to save
     ![Create Key Form](../setup-oci-vault/images/vault-image-4.png "Create Key Form")
+
+    > **Note**: You may face an error saying `Cannot read properties of undefined (reading 'toString')`, just give it 5 minutes and try again.
+
 13. Click on the Secrets link under Resources
 14. Click Create Secret button
 15. Enter the following: