LangRef 'external' patch

Here is a patch for LangRef.html that adds a section for 'external'
linkage. It probably needs love from someone with more knowledge, but
perhaps the patch will motivate that person to improve it.

Dustin

LangRef.patch (2.05 KB)

I'm sorry if this is a dumb comment, but isn't that <i> on the
'global i32' line without a corresponding </i>?

Cheers,