Forgot a readme thing

readme.md

@@ -12,6 +12,7 @@ and field line tracing:
 - The ability to define "callback events" and stop or change the integator or underlying ODE if
     certain conditions are met (zero crossings)
 - A fourth order interpolator for the Domand Prince algorithm
+- Parameters in the derivative and callback functions
 
 
 ### Future Improvements
@@ -21,7 +22,6 @@ and field line tracing:
     - Verner
     - Tsit(5)
     - Runge Kutta Cash Karp
-- Parameters in the derivative and callback functions
 - Composite Algorithms
 - Automatic Stiffness Detection
 - Fixed Time Steps