Dead links for build system

[helloworld]

hi,

http://dojotoolkit.org/documentation/ --click reference guild--> http://dojotoolkit.org/reference-guide/ --click "Dojo Build system"--> http://dojotoolkit.org/reference-guide/build/index.html#build-index It's dead link.

Hope we can fix this kind of issue as soon as possible, otherwise, many people will complain the documents issue of dojo, and in fact, this is a big shortcoming against other javascript library.

Thanks.

[bill]

Definitely, the sooner fixed the better. Dup of #14298.