@Kistlers3,
Upload the image file to Tinypic.com; photobucket.com; flickr.com; etc....
They will provide an url for you to use. Post it between the provide BBCode markup provided as such:
Code:[img]http://media.npr.org/assets/img/2014/04/20/los-banos---cannon-michaels-farm-6--dcb5d686f21b0c35d08a5b14633add0771458212.jpg[/img]