Put an attempt or two up here and I will have a look and see if it can modified. To show you how to do it. I can do it within your own post. Then you can "edit" it and see how it is done.

You need the actual picture address, ending with a jpg, gif or png. Enclosed with image code in square brackets. Use the feature in the posting box so you end up with the closing square brackets ie includes a / before image.