docs: add older docs and link them from a Sphinx controlled doc doc/sc.txt I can't reference html docs relatively directly from a sphinx toctree. So I created a new sc.txt to link to the existing: software carpentry overview (precursor to overview.txt) software carpentry design (precursor to design.txt) I also added a link to a short paper that Ka-Ping Yee wrote on Roundup's prototype and issues with other systems (bugzilla/jitterbug). doc/design.txt add link to the original precursor doc spec.html. doc/html_extra/roundup_short_paper.html, doc/html_extra/images/jitterbug-2.gif The paper, lightly edited to make image references work. Original location/name was: http://www.lfw.org/ping/roundup.html aka http://zesty.ca/roundup.html. Also added one missing image. Other images were committed some time ago. website/www/olderdocs.txt add link to new sc.txt website/www/Makefile copy the three docs and images to the published tree. Tried to use html_extra conf.py parameter as is done in the docs directory that creates share/docs/roundup/html as part of the release process. But that results in the file going to the top level directory of www.roundup.com and not to the docs subdirectory. There seems to be no way to control this, so makefile cp rule for the win.