Add docs for adding a new graphic template. Closes #122.
Add docs for adding a new graphic template. Closes #122.

nprapps/dailygraphics,stlpublicradio/dailygraphics,louisstow/dailygraphics,abcnews/dailygraphics,BenHeubl/dailygraphics,abcnews/dailygraphics,wjcjenny/dailygraphics,stlpublicradio/dailygraphics,BenHeubl/dailygraphics,wjcjenny/dailygraphics,onyxfish/dailygraphics,stlpublicradio/dailygraphics,nprapps/dailygraphics,cerealcommas/mashgraphics,swastvedt/dailygraphics,abcnews/dailygraphics,nprapps/dailygraphics,swastvedt/dailygraphics,wjcjenny/dailygraphics,onyxfish/dailygraphics,onyxfish/dailygraphics,BenHeubl/dailygraphics,abcnews/dailygraphics,nprapps/dailygraphics,cerealcommas/mashgraphics,louisstow/dailygraphics,stlpublicradio/dailygraphics,swastvedt/dailygraphics,cerealcommas/mashgraphics,louisstow/dailygraphics