add better config_template description

config_template.cfg

@@ -51,7 +51,7 @@ KIND_VERIFICATION_SOLUTION= NO_VERIFICATION_SOLUTION
 % Defaults to DISCRETE_ADJOINT for the SU2_*_AD codes, and to DIRECT otherwise.
 MATH_PROBLEM= DIRECT
 %
-% Axisymmetric simulation, only compressible flows (NO, YES)
+% Axisymmetric simulation for 2D problems. (NO, YES)
 AXISYMMETRIC= NO
 %
 % Gravity force
@@ -60,7 +60,10 @@ GRAVITY_FORCE= NO
 % Restart solution (NO, YES)
 RESTART_SOL= NO
 %
-% Only save minimum required variables for restart to minimize the restart file size.
+% Only save minimum required variables to restart files (NO, YES).
+% If this option is set to NO, then the SOLUTION fields will be written to all output
+% files by default. If you would also like to have minimum output files
+% (e.g. paraview, tecplot), then add the keyword COMPACT to VOLUME_OUTPUT.
 WRT_RESTART_COMPACT= YES
 %
 % Discard the data storaged in the solution and geometry files