* Add epoch 2 iter

* Add epoch 2 iter

* Refine chinese docs

* Add example for training CIFAR10 by iter

* minor refine

* Fix as comment

* Fix as comment

* Refine description

* Fix as comment

* minor refine

* Refine description

Co-authored-by: Zaida Zhou <58739961+zhouzaida@users.noreply.github.com>

* Translate to en

* Adjust indent

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Co-authored-by: Zaida Zhou <58739961+zhouzaida@users.noreply.github.com>