add speculators finetune examples

[Annarine]

PLEASE FILL IN THE PR DESCRIPTION HERE ENSURING ALL CHECKLIST ITEMS (AT THE BOTTOM) HAVE BEEN CONSIDERED.

Purpose

Description

这个PR需要依赖#325

Related Issue

Tests

I have filled in:

• The purpose of the PR, such as "Fix some issue (link existing issues this PR will resolve)".
• The test plan/results, such as providing test command and pasting the results.
• (Optional) The necessary documentation update.
• I (a human) have written or reviewed the code in this pr to the best of my ability.

[momo609]

please add related pr.

[fynnsu]

Finetuning support was merged in #333, instead of #325. Could you update this pr to work with that? I think the cli argument name is slightly different. Otherwise should be mostly the same.

[mergify]

This pull request has merge conflicts that must be resolved before it can be
merged. Please rebase the PR, @Annarine.

https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/working-with-forks/syncing-a-fork

[mergify]

This pull request has merge conflicts that must be resolved before it can be
merged. Please rebase the PR, @Annarine.

https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/working-with-forks/syncing-a-fork

[fynnsu]

Closing as this is outdated and uses the old gen_and_train script which has been removed.