Move 'Hierarchy' from heading to paragraph below

chapters/packages.tex

@@ -188,12 +188,11 @@ \section{The Modelica Library Path -- MODELICAPATH}\label{the-modelica-library-p
 \end{example}
 
 
-\section{File System Mapping of Package/Class Hierarchy}\label{mapping-package-class-structures-to-a-hierarchical-file-system}\label{file-system-mapping-of-package-class-hierarchy}
+\section{File System Mapping of Package/Class}\label{mapping-package-class-structures-to-a-hierarchical-file-system}\label{file-system-mapping-of-package-class}
 
-Packages/classes may be represented in the hierarchical structure of the
-operating system (the file system). For classes with version
-information see also \cref{mapping-of-versions-to-file-system}. The nature of such an external
-entity falls into one of the following two groups:
+A package/class hierarchy may be represented in the hierarchical structure of the operating system (the file system).
+For classes with version information see also \cref{mapping-of-versions-to-file-system}.
+The nature of such an external entity falls into one of the following two groups:
 \begin{itemize}
 \item
   Directory in the file system.