Possible Duplicate:
Syntax highlighting language hints
Interface options for specifying language prettify
How do I set the language being highlighted in Stack Overflow to be colored and formatted for ruby?
I've seen this somewhere but can't find it now.
Something like a one line option at the top of a file.
You can't highlight a language with Markdown. You need to outsource this to external libraries. Such as.
EDIT: The StackOverflow way of doing this is to have a comment at the top. Like so.
<!-- language: lang-js -->
Just replace lang-js with one of the language codes or a tag to set the language to the language associated with that tag. For example.
<!-- language: c# -->
Highlighting for c# is associated with the c# tag.
(use lowercase letters, uppercase letters like <!-- language: C# --> does not work.)
