Using Xinclude

[Andres Olarte]

I want to use Xinclude to have "shared" parts of my documentation,
fragments that are stored once but shown in multiple places.  I know
that you can do this with Xinclude, according to a previous post, but
I'm lost as to how to actually do it in Forrest.  I'm really, not very
experienced with advanced XML.  Does anybody has a simple example?