The solution here is a simple oversight. If you take a look at the link you are supposed to add to your <img src> you will notice that in the provided link the period (.) at the end is not highlighted. However, in your link, you included the period at the end after .jpg.
You are welcome. This one was simple to understand the issue. However, in the future, where it says “Tell us what’s happening:” please describe your issue to the best of your ability. When the code gets long or everything looks right it can be hard to troubleshoot and assist you without this information.