How to upgrade popcon image

Links to generate figures from debian website in 2021

FormaContinue_MeteoAvril2021/Slides/git.tex

@@ -265,6 +265,16 @@ int main () \{
 
 \subsection{Popularity}
 
+% To get the popcon graph image with several packages in 2021
+% interactive interface:
+% https://qa.debian.org/popcon-graph.php?packages=git
+%
+% plot generated without git (for history, or comparison without git)
+% https://qa.debian.org/cgi-bin/popcon-png?packages=subversion+cvs+mercurial+rcs+bzr+brz+fossil+darcs+monotone+codeville+tla&show_installed=0&show_vote=1&show_old=0&show_recent=0&show_nofiles=0&want_percent=0&want_legend=1&want_ticks=1&from_date=&to_date=&hlght_date=&date_fmt=%25Y-%25m
+%
+% plot generated with git
+% https://qa.debian.org/cgi-bin/popcon-png?packages=subversion+cvs+mercurial+rcs+bzr+brz+fossil+darcs+monotone+codeville+tla+git&show_installed=0&show_vote=1&show_old=0&show_recent=0&show_nofiles=0&want_percent=0&want_legend=1&want_ticks=1&from_date=&to_date=&hlght_date=&date_fmt=%25Y-%25m
+
 \begin{frame} \frametitle{Git Adoption (Debian popularity contest)}
   \begin{center}
     \includegraphics[width=.8\textwidth]{fig/popcon-png}