fix: language and parser

slides/common/Sample_Data.tex

@@ -33,7 +33,7 @@ \section{Getting your Sample Data}
 \begin{frame}[fragile]
   \frametitle{\HandsOn{Getting Your Course Material I}}
   We shall copy a few install scripts (which also will download some sample data).\newline
-  Please copy the directory "\texttt{<<course.pathtosetup>>}".\newline
+  Please copy the directory \altverb{<++course.pathtosetup++>}.\newline
   \begin{hint}
   	Remember, to copy an entire directory, you can use:
   	\begin{lstlisting}[language=Bash, style=Shell]
@@ -42,7 +42,7 @@ \section{Getting your Sample Data}
     We assume that you are working in your \altverb{HOME}. Then typing the \textasciitilde{} is not necessary.
   \end{hint}
   \pause
-  Now, change into this directory!  
+  Now, change into the copied directory!  
 \end{frame}
 
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