[lojban] Broken links in lojban-beginners introductory message

[John Leuner <lojban-out@lojban.org>]

The links to:

http://www.lojban.org/files/reference-grammar/refgr.html and
http://ptolemy.tlg.uci.edu/~opoudjis/lojbanbrochure/brochure/book1.html
are broken.

(the mailing lists and intro file are accessed via
http://www.lojban.org/lsg2 )

I may have missed something but I think the mailing list entry point
should be more prominent on the lojban home page.

John Leuner