[WM] lang_tag documentation

[Warren Post]

I´d like to use WebMake for a bilingual site and the lang_tag plugin
sounds like just what I need. Yet the doc page for it is blank, both in
versions 2.3 and 2.4. Is this plugin documented anywhere? If not, can
someone talk me through its usage? Failing that, has anyone any
experience to share using WebMake for a multilingual project generally,
with or without the lang_tag plugin? 
TIA,
-- 
Warren Post
Santa Rosa de Copán, Honduras
http://srcopan.vze.com/