message: added sample runs
diff: // ---------------------------------------------------------------------
  // Miniapp: Integral of implicit domains defined by a level set function
  // ---------------------------------------------------------------------
  +// The miniapp demonstrates an interface to the Algoim library for computing
  +// volumetric and surface integrals over domains and surfaces defined implicitly
  +// by a level set function.
  +//
  +//
  +// Sample runs:
  +//
  +// Evaluates surface and volumetric integral for a circle with radius 1
  +// ./lsf_integral -m ../../data/star-q3.mesh
  +//
  +// Evaluates surface and volumetric integral for a level set defined
  +// by y=0.5-(0.1*sin(3*pi*x+pi/2))
  +// ./lsf_integral -ls 2
  //
  -
  -
  #include "mfem.hpp"
  #include "integ_algoim.hpp"
  