Seeing these from time to time in my Messages panel (0.9.3)

Markdown

• Quick Tips:
  • Two or more spaces at a line's end = Line break
  • Double returns = Paragraph
  • *Single asterisks* or _single underscores_ = Emphasis
  • **Double** or __double__ = Strong
  • This is [a link](http://the.link.example.com "The optional title text")
  For complete details on the Markdown syntax, see the Markdown documentation and Markdown Extra documentation for tables, footnotes, and more.