broken sim links (so I can build)

proposal.tex

@@ -172,6 +172,6 @@ A number of sample slides of the previous versions of the tutorial are attached
 
 \newpage
 
-\includepdf[pages={1-},angle=90]{slides.pdf}
+\includepdf[pages={1-},angle=90]{sample_slides}
 
 \end{document}