Docs: Clarify use of \skip in lyrics

diff --git a/Documentation/user/vocal.itely b/Documentation/user/vocal.itely
index accea8762540fe939377da27aa10084f54eef611..a59389ff717c7cf29c69a6bfa9664139768b2844 100644 (file)
--- a/Documentation/user/vocal.itely
+++ b/Documentation/user/vocal.itely
@@ -647,7 +647,9 @@ inserted by hand.
 
 Making a lyric line run slower than the melody can be achieved by
 inserting @code{\skip}s into the lyrics.  For every @code{\skip}, 
-the text will be delayed another note.
+the text will be delayed another note.  The @code{\skip} command
+must be followed by a valid duration, but this is ignored when
+@code{\skip} is used in lyrics.
 
 For example,