Merge pull request #225 from pi8027/widelisting

Fix issues related to listings

examples/documentation/chapters/textnotes.tex

@@ -138,26 +138,21 @@ \section{Marginlisting}
 limited, especially for the captions, but you can try the following 
 code:
 
-\begin{marginlisting}[-1.35cm]
+\begin{marginlisting}
 	\caption{An example of a margin listing.}
-	\vspace{0.6cm}
 	\begin{lstlisting}[language=Python,style=kaolstplain]
 print("Hello World!")
 	\end{lstlisting}
 \end{marginlisting}
 
 \begin{verbatim}
-\begin{marginlisting}[-0.5cm]
+\begin{marginlisting}
 	\caption{My caption}
-	\vspace{0.2cm}
 	\begin{lstlisting}[language=Python,style=kaolstplain]
 	... code ...
 	\end{lstlisting}
 \end{marginlisting}
 \end{verbatim}
 
-Unfortunately, the space between the caption and the listing must be 
-adjusted manually; if you find a better way, please let me know.
-
 Not only textual stuff can be displayed in the margin, but also figures. 
 Those will be the focus of the next chapter.