Corrected ODE solver name

tutorials/combustion/chemFoam/README

@@ -8,4 +8,4 @@ ic8h18 : iso-Octane combustion, 874 species, 3796 reactions
 Results interpreted in 'validation' sub-folder, where OpenFOAM results
 are compared against those predicted by CHEMKIN II.
 
-Overall the best performing ODE solver is seulex followed closely by rodas32.
+Overall the best performing ODE solver is seulex followed closely by rodas23.

tutorials/combustion/chemFoam/h2/constant/chemistryProperties

@@ -33,7 +33,7 @@ EulerImplicitCoeffs
 
 odeCoeffs
 {
-    solver          seulex; //rodas32;
+    solver          seulex;
     absTol          1e-12;
     relTol          1e-1;
 }