click the Reset button to return the code to its initial state
now look at your preview pane
you will see some plain text
Click here to view more cat photos.
What they want you to do is to change this plain text so that the last 2 words become a clickable link similar to below
Click here to view more cat photos.
The words changed color because I made them into a link.
To learn how to do that, try reading my post here