* appendix tool soft polish

* appendix tool soft polish

* contribute image translate

* chapter 14 polish half

* chapter 14 soft polish done

* chapter12 0-3 polish

* soft polish chapter 12 done

Co-authored-by: NUbuntu <ubuntu@ip-172-31-12-66.us-west-2.compute.internal>

Co-authored-by: Ngoldmermaid <goldpiggy@berkeley.edu>

Co-authored-by: NTao Yuan <tao@dm.ai>

[polish] chapter 10 peer review

* fix typo in chapter_recurrent-neural-networks/sequence.md

* fix typo in chapter_recurrent-neural-networks/text-preprocessing.md

* change the Chinese translation of 'surprisal' in chapter_recurrent-neural-networks/rnn.md as it is in chapter_linear-networks/softmax-regression.md

* fix typo in in chapter_recurrent-neural-networks/rnn.md

* fix typo in chapter_recurrent-neural-networks/sequence.md

* change the Chinese name of the book "The War of the Worlds" in chapter_recurrent-neural-networks/rnn-scratch.md

* fix typo in chapter_recurrent-neural-networks/rnn-scratch.md

* fix typo in chapter_recurrent-neural-networks/rnn-concise.md

* fix typo in chapter_recurrent-neural-networks/bptt.md

[polish] chapter 9 peer review

[polish] chapter 8 peer review