Fix comments in config files

Author: xylar

polaris/ocean/convergence/convergence.cfg

@@ -12,7 +12,9 @@ error_type = l2
 # config options for convergence forward steps
 [convergence_forward]
 
-# time integrator: {'split_explicit', 'RK4'}
+# time integrator
+#  mpas-ocean: {'split_explicit', 'RK4'}
+#  omega: {'Forward-Backward', 'RungeKutta4', 'RungeKutta2'}
 time_integrator = RK4
 
 # RK4 time step per resolution (s/km), since dt is proportional to resolution

polaris/ocean/tasks/manufactured_solution/manufactured_solution.cfg

@@ -69,7 +69,9 @@ error_type = l2
 # config options for spherical convergence tests
 [convergence_forward]
 
-# time integrator: {'split_explicit', 'RK4'}
+# time integrator
+#  mpas-ocean: {'split_explicit', 'RK4'}
+#  omega: {'Forward-Backward', 'RungeKutta4', 'RungeKutta2'}
 time_integrator = RK4
 
 # RK4 time step per resolution (s/km), since dt is proportional to resolution