Improve typesetting and fix a typo

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24103 a1c6a512-1295-4272-9138-f99709370657
diff --git a/manual/advanced_topics/viewports/mono-vp-syntax.tex b/manual/advanced_topics/viewports/mono-vp-syntax.tex
index 3126d81..20c16c8 100644
--- a/manual/advanced_topics/viewports/mono-vp-syntax.tex
+++ b/manual/advanced_topics/viewports/mono-vp-syntax.tex
@@ -7,8 +7,8 @@
       user-selected font.
       \item Only the coordinates \emph{have} to be specified. Leaving the other
       definitions blank will set them to their default values.
-      \note{The correct number of {\textbar}s with hyphens in blank fields
-      are still needed in any case.}
+      \note{The correct number of `{\textbar}'s (vertical bars) with hyphens in
+      blank fields are still needed in any case.}
     \end{itemize}
   
 \begin{example}
@@ -22,3 +22,4 @@
   width/height & remaining part of screen \\
   font & user defined \\
 \end{rbtabular}
+