exercice: améliore la source

- Commente la configuration de la prise en compte des citations, afin de
  pouvoir compiler sans.
- Ajoute une citation en ligne pour montrer le support des guillemets
  adaptés à la langue.
- Supprime le PDF de l'archive de l'exercice.

Co-Authored-by: iGor milhit <igor@milhit.ch>

exercice/exercice.tex

@@ -19,10 +19,10 @@
 \usepackage{lmodern}
 % Sets the encoding of the output file
 \usepackage[T1]{fontenc}
-\usepackage[style=authoryear,
-            backend=biber]{biblatex}
+% \usepackage[style=authoryear,
+%             backend=biber]{biblatex}
 % Declares the bibliographic database file
-\addbibresource{references-exercice.bib}
+% \addbibresource{references-exercice.bib}
 
 \author{Dimitri Donzé, Vincent Hubert, Igor Milhit}
 \title{Notre pseudo-article}
@@ -42,15 +42,16 @@ comme le suggèrent <authors>.
 
 \section{Première partie}
 
-Dans \emph{cette première partie}, nous pouvons afficher la citation suivante.
+Dans \emph{cette première partie}, nous pouvons insérer une \enquote{citation
+en ligne} et le bloc de citation suivante :
 
 \begin{quote}
-    The results showed that different reference managers require different
-levels of effort, and users generally prefer the tools that involve less
-effort. We also found that although reference managers share similar features,
-differences in presentation and organization matter. We conclude this work by
-providing a set of guidelines for both users and developers of reference
-managers.
+  The results showed that different reference managers require different
+  levels of effort, and users generally prefer the tools that involve less
+  effort. We also found that although reference managers share similar features,
+  differences in presentation and organization matter. We conclude this work by
+  providing a set of guidelines for both users and developers of reference
+  managers.
 \end{quote}
 
 \newpage