Just paste in the image links in succession, best with a line feed or text between each. I believe there's a limit of 6 images per post on this site. After the 6th, one's links will be listed, but the images will not come up. If one must use more than 6, just include a second post following the first.
An old example of mine with about 10 images total:
Pronghorn example: Link 
