Add blurb about Kievan notation to changes

Adds a blurb and minimal example to changes.tely indicating support of Kievan notation.

diff --git a/Documentation/changes.tely b/Documentation/changes.tely
index e1c05e52c8befbc4c9cf4c9068c71af828995596..6545c1dd69c8de8ce1ce80753cfb22b054a1449b 100644 (file)
--- a/Documentation/changes.tely
+++ b/Documentation/changes.tely
@@ -60,6 +60,15 @@ which scares away people.
 * only show user-visible changes.
 
 @end ignore
+@item
+Support for Kievan square notation:
+@lilypond[quote,relative=1,verbatim]
+\new KievanVoice {
+  \cadenzaOn
+  c d e f g a bes
+  \bar "kievan"
+}
+@end lilypond
 
 @item
 Augmentation dots now avoid the other voice in two-voice polyphony