[D] Doxygen formula rendering fixes...

MaterialLib/Fluid/Density/LinearConcentrationAndPressureDependentDensity.h

@@ -80,9 +80,6 @@ public:
 
     /// Get the partial differential of the density with respect to
     /// concentration or pressure.
-    /// \param var_vals  Variable values  in an array. The order of its elements
-    ///                   is given in enum class PropertyVariableType.
-    /// \param var       Variable type.
     double getdValue(const ArrayType& /*var_vals*/,
                      const PropertyVariableType var) const override
     {

ProcessLib/ComponentTransport/ComponentTransportProcess.h

@@ -32,7 +32,7 @@ namespace ComponentTransport
  *     + Q_p = 0,
  * \f]
  * where the storage \f$S\f$ has been substituted by
- *      \phi \frac{\partial \rho}{\partial p},
+ *      \f$\phi \frac{\partial \rho}{\partial p}\f$,
  * \f$\phi\f$ is the porosity,
  * \f$C\f$ is the concentration,
  * \f$p\f$ is the pressure,