Clearer that absolute size for svg.

chapters/annotations.tex

@@ -888,7 +888,7 @@ \subsubsection{Bitmap}\doublelabel{bitmap}
 external file containing image data. The mapping from the string to the
 file is specified for some URIs in \autoref{external-resources}. The supported file
 formats include \lstinline!PNG!, \lstinline!BMP!, \lstinline!JPEG!,
-and \lstinline!SVG! (provided that the outermost svg-element specifies the size, i.e., width and height).
+and \lstinline!SVG! (provided that the outermost svg-element specifies an absolute size using width and height).
 
 When the attribute \lstinline!imageSource! is specified, the string contains the
 image data -- and the image format is determined based on the contents.