deprecate.h: tell developers to look at the documentation
deprecate.h: tell developers to look at the documentation

If something's deprecated, chances are the developer should be looking
at the CrissCross documentation for an explanation as to _why_.

Signed-off-by: Steven Noonan <4068f0880b399410602d694b3cc711c8a8f4727e@uplinklabs.net>

tycho/crisscross,tycho/crisscross,tycho/crisscross