Restore quoted identifier part

chapters/annotations.tex

@@ -861,7 +861,7 @@ \subsubsection{Text}\doublelabel{text}
   \begin{example}
   If \lstinline!par = "Modelica.Blocks.Types.Enumeration.Periodic"!, then \lstinline!%par! should be displayed as \emph{Periodic}.
   \end{example}
-  The form \%\{\emph{par\}} allows component-references, and can be directly
+  The form \%\{\emph{par\}} allows component-references and is required for quoted identifiers, and can be directly
   followed by a letter. Thus \lstinline!%{w}x%{h}! gives the value of \lstinline!w!
   directly followed by \emph{x} and the value of \lstinline!h! -- and \lstinline!%wxh! gives the value of the
   parameter \lstinline!wxh!. If the parameter does not exist it is an error.