[idn] related work

[Erik van der Poel <erik@vanderpoel.org>]

All,

Recently, we have been talking about creating a number of new documents. 
In order to avoid overlap with other documents, I thought it might be 
nice to have a list of related work, so I started a new section:

http://nameprep.org/#related-work

In particular, the Unicode Security document and John Klensin's 
registration guidelines are very relevant to our discussions. If you 
would like to add items to the list, please send them to me.

Thanks,

Erik