Attachments are disabled.
Upload your photo to a image service like
www.imgur.com if you see an "embed" option, use the "BBCode" option and copy that code here.
If you don't see that embed option: right mouse click on the image and do something like "copy image location". Then add this with the following code:
[img]your-image-location[/img]
Also this topic should be in "Meta" cuz it's a question about the forum.