I noticed the image was quite squashed so I added a link below to click for a bigger version. The edit preview showed the link and I clicked on it to check it worked.
When the edit was eventually approved the link didn't show. I assumed I had done something silly so edited it again, removed the whole thing and tried a second time.
However the link isn't shown in the question even though it was displayed in the preview and is still visible in the Markdown source. I used the WSIWYG editor buttons in all instances to add links and embed the image.
Am I doing something wrong or is this a feature/bug?