I put in the image links just how it says I needed to. No images show up in the Full Screen view of the site, and when I click on Save & Submit Code, I get the Oops saying I need to change the img scr attribute. But it's already what it's telling me to change it to. I even copied and pasted just to make sure.
Here is a screen shot with the hint of what the code is supposed to look like, alongside my code work and the error at the bottom.