Hi Daniel,
Can you provide a bit more info on what you did? I tested this exact code and it worked perfectly. Here’s a screenshot http://i.imgur.com/feSjGBc.png
As @jessy mentioned, the footer shows up that way from Genesis (the same in all Child themes). In order to change the text for it you have to override it. You can use something like Simple Edits to add your code in, or you can add it in directly to your functions file. I use FTP to add it inside the functions file. Much safer and easier to undo any mistakes in case I break the site with a PHP error 🙂