Update chapters/packages.tex

Co-authored-by: Henrik Tidefelt <henrikt@wolfram.com>

chapters/packages.tex

@@ -352,7 +352,7 @@ \section{Multilingual Descriptions}\label{multilingual-descriptions}
 Two kind of files in \textcite{GettextManual} format have to be provided:
 \begin{enumerate}
 \item Template file \filename{$\mathit{LibraryName}$.pot}, as the resource \filename{modelica://$\mathit{LibraryName}$/Resources/Language/$\mathit{LibraryName}$.pot}.
-It contains all necessary information to translate all descriptions, but no translations.
+It describes all translatable strings in the library, but does not contain any translations.
 The pattern \filename{$\mathit{LibraryName}$} denotes the toplevel class name of the library.
 \item One file for each supported language with the name \filename{$\mathit{LibraryName}$.$\mathit{language}$.po}, as the resource \filename{modelica://$\mathit{LibraryName}$/Resources/Language/$\mathit{LibraryName}$.$\mathit{language}$.po}.
 This file is a copy of the associated template file, but extended with the translations in the specified language.