I had an interesting idea this morning. At least I find it interesting, but I haven’t slept much lately. Either way, here it is: in Markdown, if you misname a reference link, forget to fill one in or have a malformed URL, your broken Markdown shows up in your output. Wouldn’t it be nice if your preview highlighted those for you before you went to publish?
It just scans for Markdown-style links (
[text](link)) that are still in your text after converting to HTML. If it finds them, it highlights them in red. Just thought I’d share.