@PaulVargas Ah, right. I was missing a step there: you've got "accents" in your text. Mine didn't. So
here's a new comparison - which shows up the same issue for me (Ubuntu 14.04 LTS) as you saw. I do most of my simple text-editing in
Textadept these days - great editor, imo, which is "Markdown-aware", although it doesn't have "rendered" preview. (I keep Vim for special occasions!)