"deprecate" old webpages 

pages no longer in use might be be linked externally / still in search engine index; would be nice to mark as deprecated with a pointer to new stuff; might add a "(this page is deprecated, please see XXX)"

https://chuck.stanford.edu/doc/program/ugen.html
https://chuck.stanford.edu/doc/program/uana.html
https://chuck.stanford.edu/doc/program/

