Add question generation example

[westfish]

PR types

New features

PR changes

Others

Description

Add T5-based question generation example

[github-actions[bot]]

This Pull Request is stale because it has been open for 60 days with no activity. 当前Pull Request 60天内无活动，被标记为stale。

[CLAassistant]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you all sign our Contributor License Agreement before we can accept your contribution.
18 out of 19 committers have signed the CLA.

:white_check_mark: westfish
:white_check_mark: gongel
:white_check_mark: FrostML
:white_check_mark: BasicCoder
:white_check_mark: w5688414
:white_check_mark: guoshengCS
:white_check_mark: joey12300
:white_check_mark: JunnYu
:white_check_mark: lugimzzz
:white_check_mark: LemonNoel
:white_check_mark: wj-Mcat
:white_check_mark: Haibarayu
:white_check_mark: linjieccc
:white_check_mark: dongfangshenzhu
:white_check_mark: LiuChiachi
:white_check_mark: littletomatodonkey
:white_check_mark: ZHUI
:white_check_mark: chenxiaozeng
:x: tianxin

---

tianxin seems not to be a GitHub user. You need a GitHub account to be able to sign the CLA. If you have already a GitHub account, please add the email address used for this commit to your account.
_{You have signed the CLA already but the status is still pending? Let us recheck it.}

[github-actions[bot]]

This Pull Request is stale because it has been open for 60 days with no activity. 当前Pull Request 60天内无活动，被标记为stale。

[github-actions[bot]]

This Pull Request is stale because it has been open for 60 days with no activity. 当前Pull Request 60天内无活动，被标记为stale。