You formatted it incorrectly for the images to show. I fixed it for you. The img in brackets goes in front of URL and the /img in brackets follows it. You had both in front of the URL and on the first one tossed in an extra http// as well.
The easiest way to do it is to separate your urls with a space as between paragraphs. Then highlight them one at a time and click on the IMG icon and it will add the proper code. You must do each URL seaparately like that. Be sure to hit ENTER and add that line between URLs first.
