Improvements to the NOXSolver class documentation

include/deal.II/trilinos/nox.h

@@ -67,10 +67,10 @@ namespace TrilinosWrappers
    * // Set user functions to compute residual, to set up the Jacobian, and to
    * // apply the inverse of the Jacobian.
    * // Note that there are more functions that can be set.
-   * solver.residual = [](const auto &src, auto &dst) {...};
-   * solver.setup_jacobian = [](const auto &src) {...};
+   * solver.residual = [](const auto &u, auto &F) {...};
+   * solver.setup_jacobian = [](const auto &u) {...};
    * solver.solve_with_jacobian =
-   *   [](const auto &src, auto &dst, const auto) {...};
+   *   [](const auto &u, auto &F, const auto) {...};
    *
    * // solver nonlinear system with solution containing the initial guess and
    * // the final solution