Currently, there is no direct way to edit/change your email account. However, you can easily create a new account and delete the old one.
- Click the Users button on the top of the screen
- Click +Invite Users
- Enter the first and last name and the new email address and click the green Invite Users button
- Check your email for the new invite and log in with this new account.
- Click the Ellipsis menu next to the old user account and select Remove to delete it.
- Alternatively, you can leave the old account as-is and simply use the new account with the updated email address. (Just in case you ever do need to access Nozzle through the old email address.)