[examples][freeflowchannel] Toggle less in main file

examples/freeflowchannel/README.md

@@ -291,10 +291,8 @@ The following class contains functionality for additional flux output to the con
 #include "problem.hh"
 ```
 </details>
-
 </details>
-```cpp
-```
+
 
 ### Setup basic properties for our simulation
 We setup the DuMux properties for our simulation (click [here](https://git.iws.uni-stuttgart.de/dumux-repositories/dumux-course/blob/master/slides/dumux-course-properties.pdf) for DuMux course slides on the property system) within the namespace Properties, which is a sub-namespace of Dumux.
@@ -340,8 +338,6 @@ struct EnableGridGeometryCache<TypeTag, TTag::ChannelExample> { static constexpr
 We begin the main function by making the type tag `ChannelExample`, that we defined in `problem.hh` for this test problem available here.
 Then we initializing the message passing interface (MPI), even if we do not plan to run the application in parallel. Finalizing of the MPI is done automatically on exit.
 We continue by printing the dumux start message and parsing the command line arguments and runtimeparameters from the input file in the init function.
-<details>
-<summary>Toggle to expand code (beginning of main)</summary>
 
 ```cpp
 int main(int argc, char** argv) try
@@ -357,7 +353,6 @@ int main(int argc, char** argv) try
 
     Parameters::init(argc, argv);
 ```
-</details>
 
 ### Set-up and solving of the problem
 
@@ -374,8 +369,6 @@ and then use the solution vector to intialize the `gridVariables`. Grid variable
 primary variables (velocities, pressures) as well as secondary variables (density, viscosity, ...).
 We then initialize the vtkoutput. Each model has a predefined model-specific output with relevant parameters
 for that model. Here, it is pressure, velocity, density and process rank (relevant in the case of parallelisation).
-<details>
-<summary>Toggle to expand code</summary>
 
 ```cpp
     GridManager<GetPropType<TypeTag, Properties::Grid>> gridManager;
@@ -405,7 +398,6 @@ for that model. Here, it is pressure, velocity, density and process rank (releva
     IOFields::initOutputModule(vtkWriter); // Add model specific output fields
     vtkWriter.write(0.0);
 ```
-</details>
 
 We set up two surfaces over which fluxes are calculated.
 We determine the extensions [xMin,xMax]x[yMin,yMax] of the physical domain.
@@ -415,8 +407,6 @@ at the position of the surface (which is required for the flux calculation).
 In this case, we add half a cell-width to the x-position in order to make sure that
 the cell faces lie on the surface. This assumes a regular cartesian grid.
 The second surface (second call of addSurface) is placed at the outlet of the channel.
-<details>
-<summary>Toggle to expand code (addition of surfaces)</summary>
 
 ```cpp
     FluxOverSurface<GridVariables,
@@ -451,7 +441,6 @@ The second surface (second call of addSurface) is placed at the outlet of the ch
     const auto p1outlet = GlobalPosition{xMax, yMax};
     flux.addSurface("outlet", p0outlet, p1outlet);
 ```
-</details>
 
 The incompressible Stokes equation depends only linearly on the velocity, so we could use a linear solver to solve the problem.
 Here, we use the show the more general case which would also work for incompressible fluids or the

examples/freeflowchannel/main.cc

@@ -88,9 +88,8 @@
 
 #include "problem.hh"
 // </details>
-//
 // </details>
-
+//
 //
 // ### Setup basic properties for our simulation
 // We setup the DuMux properties for our simulation (click [here](https://git.iws.uni-stuttgart.de/dumux-repositories/dumux-course/blob/master/slides/dumux-course-properties.pdf) for DuMux course slides on the property system) within the namespace Properties, which is a sub-namespace of Dumux.
@@ -134,8 +133,6 @@ struct EnableGridGeometryCache<TypeTag, TTag::ChannelExample> { static constexpr
 // We begin the main function by making the type tag `ChannelExample`, that we defined in `problem.hh` for this test problem available here.
 // Then we initializing the message passing interface (MPI), even if we do not plan to run the application in parallel. Finalizing of the MPI is done automatically on exit.
 // We continue by printing the dumux start message and parsing the command line arguments and runtimeparameters from the input file in the init function.
-//<details>
-//  <summary>Toggle to expand code (beginning of main)</summary>
 //
 int main(int argc, char** argv) try
 {
@@ -149,7 +146,6 @@ int main(int argc, char** argv) try
         DumuxMessage::print(/*firstCall=*/true);
 
     Parameters::init(argc, argv);
-    // </details>
     //
     // ### Set-up and solving of the problem
     //
@@ -166,8 +162,6 @@ int main(int argc, char** argv) try
     // primary variables (velocities, pressures) as well as secondary variables (density, viscosity, ...).
     // We then initialize the vtkoutput. Each model has a predefined model-specific output with relevant parameters
     // for that model. Here, it is pressure, velocity, density and process rank (relevant in the case of parallelisation).
-    //<details>
-    //  <summary>Toggle to expand code</summary>
     //
     GridManager<GetPropType<TypeTag, Properties::Grid>> gridManager;
     gridManager.init();
@@ -195,7 +189,6 @@ int main(int argc, char** argv) try
     StaggeredVtkOutputModule<GridVariables, SolutionVector> vtkWriter(*gridVariables, x, problem->name());
     IOFields::initOutputModule(vtkWriter); // Add model specific output fields
     vtkWriter.write(0.0);
-    // </details>
     //
     // We set up two surfaces over which fluxes are calculated.
     // We determine the extensions [xMin,xMax]x[yMin,yMax] of the physical domain.
@@ -205,8 +198,6 @@ int main(int argc, char** argv) try
     // In this case, we add half a cell-width to the x-position in order to make sure that
     // the cell faces lie on the surface. This assumes a regular cartesian grid.
     // The second surface (second call of addSurface) is placed at the outlet of the channel.
-    //<details>
-    //  <summary>Toggle to expand code (addition of surfaces)</summary>
     //
     FluxOverSurface<GridVariables,
                     SolutionVector,
@@ -239,7 +230,6 @@ int main(int argc, char** argv) try
     const auto p0outlet = GlobalPosition{xMax, yMin};
     const auto p1outlet = GlobalPosition{xMax, yMax};
     flux.addSurface("outlet", p0outlet, p1outlet);
-    // </details>
     //
     // The incompressible Stokes equation depends only linearly on the velocity, so we could use a linear solver to solve the problem.
     // Here, we use the show the more general case which would also work for incompressible fluids or the