message: DOC: Fixed typo in and enhanced descrition of mint_nbody_solver.
diff: * \file
  *
  * \brief A simple, naive, N-Body solver to illustrate the use of the
  - * ParticleMesh class
  - *
  + * ParticleMesh class. The N-Body solver simulates a collection of N particles
  + * where the force on each particle is a sum of the forces resulting from each
  + * pairwise interaction involving that particle.
  */
  // axom_utiles
  @@ -153,7 +154,7 @@ void apply_forces( mint::ParticleMesh& particles, double dt )
  fz += dz*invdist3;
  }
  - // udpate velocities
  + // update velocities
  vx[ i ] += dt*fx;
  vy[ i ] += dt*fy;
  vz[ i ] += dt*fz;
  