* Simplify and update trl examples * Remove optim_args from SFTConfig in Trainer documentation * Update docs/source/en/trainer.md * Apply suggestions from code review * Update docs/source/en/trainer.md Co-authored-by: Steven Liu <59462357+stevhliu@users.noreply.github.com> --------- Co-authored-by: Quentin Gallouédec <qgallouedec@Quentins-MacBook-Pro.local> Co-authored-by: Steven Liu <59462357+stevhliu@users.noreply.github.com>