[Markdown](http://daringfireball.net/projects/markdown/)
is a minimal markup language that resembles plain text as used in
-email messages. It is the markup language used by this wiki.
+email messages. It is the markup language used by this wiki by default.
For documentation about the markdown syntax, see [[HelpOnFormatting]] and
[Markdown: syntax](http://daringfireball.net/projects/markdown/syntax).
-Note that [[WikiLink]]s and [[PostProcessorDirective]]s are not part of the markdown syntax, and are the only bit of markup that this wiki handles internally.
+Note that [[WikiLink]]s and [[PreProcessorDirective]]s are not part of the
+markdown syntax, and are the only bit of markup that this wiki handles
+internally.