deletions | additions       diff --git a/preamble.tex b/preamble.tex  index c4ed07d..566b48d 100644  --- a/preamble.tex  +++ b/preamble.tex 
...
\usepackage{url}  \bibliographystyle{plain}  \newcommand*{\catme}{\url{http://www.catme.org}} \newcommand{\catme}{\href{http://www.catme.org}{CATME}}