That’s not something we plan to build into the theme, but it’s something you can do with some modifications.
There are a couple different ways you could do it. One would be using custom CSS if the footer text will be plain text. Here is an example you can start with:
.site-footer .site-info {
display: none;
}
.site-footer:after {
content: "Copyright \00A9 Name.";
color: #888;
font-size: 11px;
margin: 1.5em 0;
text-align: center;
display: block;
}
To add custom CSS, you can use a plugin such as Jetpack which has a CSS editor built in.
This explains how to install Jetpack:
https://jetpack.me/support/getting-started-with-jetpack/#install-jetpack
And this page has more details about how the custom CSS module works:
https://jetpack.me/support/custom-css/
