only list unsolved issues

doc/chapter/4progress.tex

@@ -55,7 +55,7 @@ The following features are either planned (\planned), under construction (\progr
 \end{itemize}
 
 \section{Known Issues}\label{sec:knownIssues}
-The most important issues are listed here.
+The most important unsolved issues are listed here.
 For a complete list, see \url{https://koljastrohm-games.com:3000/GraphDrawer/NodeShuffler/issues}.
 \begin{itemize}
     \item Our implementation does not behave correctly for very few graphs, see section ~\ref{sec:assumptions} and figures~\ref{fig:error_disconnected_img},~\ref{fig:error_connected_img},~\ref{fig:error_disconnected}, and~\ref{fig:error_connected}.