Update chapters/annotations.tex

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

chapters/annotations.tex

@@ -2327,7 +2327,7 @@ \subsection{Licensing}\label{licensing}
 \section{License Texts}\label{license-texts}
 
 For a top-level class the {\lstinline!annotation(License="modelica:/ModelicaLibraryName/Resources/Licenses/MyLicense.txt")!}\annotationindex{License}, gives a license text file for the class.
-The annotation may give a scalar value or an array of values.
+The annotation may give a scalar string or an array of strings, where each string is a URI referencing a license text file, see \cref{external-resources}.
 The license text files are human-readable files containing the license conditions.
 If the annotation specifies an array of license text files the conditions in all of them must be satisfied (i.e., it is not intended for dual-licensing).
 External functions may also contain this annotation (with similar content), see \cref{annotations-for-external-libraries-and-include-files}.