You are linking to a Codepen, not an image.
This is the URL to the image used by the example project.
https://cdn.freecodecamp.org/testable-projects-fcc/images/tribute-page-main-image.jpg
BTW, you are not supposed to copy the example project, if that is what you are doing. Create your own tribute page.
I’ve edited your post for readability. When you enter a code block into a forum post, please precede it with a separate line of three backticks and follow it with a separate line of three backticks to make it easier to read.
You can also use the “preformatted text” tool in the editor (</>) to add backticks around text.
See this post to find the backtick on your keyboard.
Note: Backticks (`) are not single quotes (’).