first of all the link you posted is not an image link. it is a link to the page containing the image, yo should post the link ending in .jpg or .png or the format in general.

secondly you are a brand new account, and a lot of features are disabled for you until you rank up 1 level.

also move this to the board called meta, there is a button at the bottom of the page for moving.

edit:
there you go: