Merge pull request #1303 from neiled/patch-1

Images link is 404, now must use API

website/source/docs/builders/digitalocean.html.markdown

@@ -43,7 +43,7 @@ each category, the available configuration keys are alphabetized.
 * `image` (string) - The name (or slug) of the base image to use. This is the
   image that will be used to launch a new droplet and provision it. This
   defaults to 'ubuntu-12-04-x64' which is the slug for "Ubuntu 12.04.4 x64".
-  See https://developers.digitalocean.com/images/ for the accepted image names/slugs.
+  See https://developers.digitalocean.com/#list-all-images for details on how to get a list of the the accepted image names/slugs.
 
 * `image_id` (integer) - The ID of the base image to use. This is the image that
   will be used to launch a new droplet and provision it.