Docs: Usage: can't @ruser to a non-node

diff --git a/Documentation/usage/running.itely b/Documentation/usage/running.itely
index c0835ac21b63f25904caa15cc85575ce9bb6e77b..3fe520836e386053c4e7af471ba02f0beae1af5c 100644 (file)
--- a/Documentation/usage/running.itely
+++ b/Documentation/usage/running.itely
@@ -809,4 +809,5 @@ staff by inserting
 @end example
 
 @noindent
-at its start.  For details, see @ruser{Spacing of non-staff lines}.
+at its start.  For details, see @qq{Spacing of non-staff lines} in
+@ruser{Vertical spacing inside a system}.