add small png creation info

diff --git a/Documentation/user/lilypond-book.itely b/Documentation/user/lilypond-book.itely
index 6ec15809b33680e687cf216b042686e222068117..46fbee383958d8a3025b31629e2efb408491662a 100644 (file)
--- a/Documentation/user/lilypond-book.itely
+++ b/Documentation/user/lilypond-book.itely
@@ -1015,5 +1015,8 @@ To produce a useful EPS file, use
 
 @example
 lilypond -dbackend=eps -dno-gs-load-fonts -dinclude-eps-fonts   myfile.ly
+
+PNG:
+lilypond -dbackend=eps -dno-gs-load-fonts -dinclude-eps-fonts --png myfile.ly
 @end example