For which languages does it work? The comments in prettify.js are authoritative but the lexer should work on a number of languages including C and friends, Java, Python, Bash, SQL, HTML, XML, CSS, ...

I do changes that may not be big, but big enough that auto-update will break your code. For example, small rename to a parameter and your code stops working! Be responsible!

As China continues its scientific ascent, the rest of the world should keep engaging.