How can I change the "My first list" to reflect for example " … Affiliates"

How can I change the form name from “My first list” to reflect for example ” … Affiliates”?

For example below:

Hi ……..of our ship!

You’ve subscribed to our affiliate program on [www.learningenglish.uk.com.]

We need you to activate your subscription to the list(s): My first list by clicking the link below:

Click here to confirm your subscription.

Get started NOW and start making money by inviting your friends and other buyers.

Thank you,

I will like to change the form name from My first list to ” … Affiliates”