add a better URL

Author: dimpase

polyfaq.tex

@@ -122,6 +122,7 @@ \section{What is Polyhedral Computation FAQ?}  \label{Sec:intro}
 Polyhedral computation {FAQ}\\
  ETH Zurich, Switzerland\\
     [email protected]\\
+\url{https://cddlib.github.io/polyhedral_faq/} or (less up to date)\\
 \url{https://people.inf.ethz.ch/fukudak/}.
 \end{quote}
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