Document nested property improvements.

diff --git a/Documentation/topdocs/NEWS.tely b/Documentation/topdocs/NEWS.tely
index 3ec4ab59595018b8780c3d05d6a7d598f591358a..0a883b19ee7671c752c78eecca24bbfc305bcd89 100644 (file)
--- a/Documentation/topdocs/NEWS.tely
+++ b/Documentation/topdocs/NEWS.tely
@@ -65,6 +65,15 @@ which scares away people.
 
 @end ignore
 
+@item
+Nested properties, such as @code{details} in @code{Slur}, can be
+reverted as well.  The syntax for this is
+
+@example
+\revert Slur #'(details closeness-factor)
+@end example
+
+@item
 All line spanners are more flexible now in the configuration of their
 end points.  This includes glissando, voice followers, text crescendos
 and other text spanners.