Doc: add note about pdf being better for typographical examples.

diff --git a/Documentation/general/manuals.itexi b/Documentation/general/manuals.itexi
index 8d292b84fc8f3551ddbe61b4d715ea4895af18f4..315d143e2328955c82fbc942692a8ab98c426bf2 100644 (file)
--- a/Documentation/general/manuals.itexi
+++ b/Documentation/general/manuals.itexi
@@ -243,6 +243,9 @@ This book gives a brief history of music typography, followed by
 an examination of LilyPond's engraving techniques.  A comparison
 between LilyPond and other music engraving systems is given.
 
+@warning{The detailed typographical examples are easier to analyze
+in the PDF version due to its higher resolution.}
+
 @divEnd
 
 @divClass{column-right-top}