Merge pull request #1373 from chleh/improve-docu-part2

Documentation/ProjectFile/linear_solver/c_linear_solver.md

Documentation/ProjectFile/linear_solver/eigen/i_eigen.md

...tion/ProjectFile/linear_solver/eigen/t_error_tolerance.md

...n/ProjectFile/linear_solver/eigen/t_max_iteration_step.md

...entation/ProjectFile/linear_solver/eigen/t_precon_type.md

...entation/ProjectFile/linear_solver/eigen/t_solver_type.md

Documentation/ProjectFile/linear_solver/petsc/i_petsc.md

...mentation/ProjectFile/linear_solver/petsc/t_parameters.md

Documentation/ProjectFile/linear_solver/petsc/t_prefix.md

Documentation/ProjectFile/linear_solver/t_lis.md

Documentation/ProjectFile/linear_solver/t_name.md

Documentation/ProjectFile/ode_solver/CVODE/c_CVODE.md

...ProjectFile/ode_solver/CVODE/t_linear_multistep_method.md

...jectFile/ode_solver/CVODE/t_nonlinear_solver_iteration.md

Documentation/ProjectFile/ode_solver/c_ode_solver.md

...tation/ProjectFile/prj/linear_solvers/i_linear_solvers.md

...tFile/prj/linear_solvers/linear_solver/i_linear_solver.md

.../ProjectFile/prj/nonlinear_solvers/i_nonlinear_solvers.md

...prj/nonlinear_solvers/nonlinear_solver/Picard/c_Picard.md

.../nonlinear_solvers/nonlinear_solver/i_nonlinear_solver.md