Tour: use malt/d instead of corenlp/c as relation example

It is much more frequently used and applicable to more instances.

Change-Id: Iec97789741d98e5513efaa779860d532205e494f
diff --git a/Changes b/Changes
index 4071963..52c16fa 100644
--- a/Changes
+++ b/Changes
@@ -1,4 +1,4 @@
-0.57 2024-10-01
+0.57 2024-10-07
         - Support VCs via URL without queries (diewald)
         - Added translations for regexp and FCSQL (r-wilm)
         - Introduce 'ui-ready' global event (diewald)
@@ -6,6 +6,7 @@
           results (diewald)
         - Move page to top after click on example queries (diewald)
         - Disable sidebar via stash (diewald)
+        - Change malt/d for relation default in tour (kupietz)
 
 0.56 2024-09-23
         - Improve slim test for plugin support