How do I change the heading of "delivery note' to 'delivery order'

Hi, I’m a newbie using ERPNext and I have a simple question. Is there anyway that I can change the heading of ‘delivery note’ to say ‘delivery order’? Everything else in the form can stay the same. Do I have to set up a new form just for this?

Check Print Heading.

https://frappe.github.io/erpnext/user/manual/en/setting-up/print/print-headings