message: fixed tutorial
diff: int main() {
  - auto mpi_config = new cylon::net::MPIConfig(); // todo use make here
  + auto mpi_config = std::make_shared<cylon::net::MPIConfig>();
  auto ctx = cylon::CylonContext::InitDistributed(mpi_config);
  const std::string csv1 = "/tmp/csv1.csv";
  @@ -50,7 +50,5 @@ int main() {
  << second_table->Rows() << ", Joined has : " << joined_table->Rows();
  ctx->Finalize();
  -
  - free(mpi_config); // todo remove this
  return 0;
  }
  \ No newline at end of file
  