yogthos/markdown-clj — pull request #13 by ptaoussanis (2013-07-26 07:14:14+00:00)
Title: Use `strong` rather than `b` tag for `**`.

With this change:
**foo** -> foo
*foo* -> foo

__foo__ -> foo
_foo_ -> foo

The former two carrying semantic meaning, the latter two only stylistic.