math.runge-kutta: fix help-lint.

diff --git a/extra/math/runge-kutta/runge-kutta-docs.factor b/extra/math/runge-kutta/runge-kutta-docs.factor
index b008c04a0b73aa50c8648ed2f243ed401078de70..66279768dfc84732fb70d5daf9c25637331e6e73 100644 (file)
--- a/extra/math/runge-kutta/runge-kutta-docs.factor
+++ b/extra/math/runge-kutta/runge-kutta-docs.factor
@@ -1,7 +1,8 @@
-USING: help.markup help.syntax ;
+USING: help.markup help.syntax kernel ;
 IN: math.runge-kutta 
 
 HELP: <runge-kutta-4>
+{ $values { "dxn..n/dt" object } { "delta" object } { "initial-state" object } { "t-limit" object } { "seq" object } }
 { $description "Simple runge-kutta implementation for generating 4th-order approximated solutions for a set of first order differential equations" }
 { $examples
     "A lorenz attractor is a popular system to model with this: "