[PHP-DOC] php doc how-to links are all broken?

[J. Adams]

I'm hoping to improve (nay, create!) documentation for amfext.  
Currently, there really is none except here:
http://svn.php.net/repository/pecl/amfext/trunk/docs/
I tried to check out the documentation how-to linked from php.net, but 
all the links are 404. I'm talking about this:
http://doc.php.net/php/dochowto


Can anyone refer me to some good resources on learning how to document a 
PECL extension?