learning-markdown/example/tex_templates/report-footer.tex

\begin{center}
  \includegraphics[width=2cm]{assets/by-sa.pdf}
  
  \scriptsize This work is licensed under the Creative Commons
  Attribution-ShareAlike 3.0 Unported License.\\ To view a copy
  of this license, visit
  \url{http://creativecommons.org/licenses/by-sa/3.0/}.
\end{center}