I use the Lyrical theme, and this advice was not helpful. When you go to Appearance -> Editor, as suggested by some sites from your search, they point to a footer.php file, but is not part of the GoDaddy themes. Instead, the GoDaddy themes seem to inherit from a parent them called Primer. This has a footer.php file, but in there, it does not have the explicit text that we are looking for to change, but rather, a set of function calls. This is like a rabbit hole, and it would be very helpful if GoDaddy actually gave more specific instructions for changing the footer of their themes.