Update chapters/packages.tex

Co-authored-by: Thomas Beutlich <modelica@tbeu.de>

chapters/packages.tex

@@ -327,7 +327,7 @@ \section{Multilingual Descriptions}\label{multilingual-descriptions}
 \begin{nonnormative}
 Descriptive texts in a model or library are usually formulated in English.
 To support users who are not so familiar with this, a Modelica tool can support the translation of these texts into any language.
-This should be done using external files, so that no modification of the actual Modelica text is required.
+Translated Modelica text is provided by external files, so that no modification of the original Modelica text is required.
 \end{nonnormative}
 
 The texts in following Modelica constructs should be translated: