![alt](http://example.com/test_an_image.jpg) doesn't work, apparently because the two underscores in the URL are being interpreted as Markdown italics. Instead you get the verbatim text with underscores removed (or if viewed in the right context, "an" in italics)
![alt](http://example.com/test_an_image.jpg)
doesn't work, apparently because the two underscores in the URL are being interpreted as Markdown italics. Instead you get the verbatim text with underscores removed (or if viewed in the right context, "an" in italics)