"Notes" in workflow tab is not showing up on Notification e-mail.

In my change management process, I would like to reflect the Notes written by the approval on an email notification that goes out to the implementer.

I tried using $Notes, ${Notes} but neither of which will show up the notes written.
however any notes written on the NON-Workflow tab (refer to Screenshot e.g. Change Details & Closed) these notes can be pulled out and reflected on the notification email that is sent out.

How do I pull out the Notes within the workflow process?