Automate RTD pipeline in release workflow

[mavenlin]

After building the wheel

1. Install the wheel.
2. Invoke sphinx make html.
3. Deploy to readthedocs.

[mavenlin]

@iamohcy Since you've setup this for hloenv, could you offer some help on this?

[iamohcy]

I believe the steps should be:

1. Create a RTD account
2. Connect GitHub account to RTD
3. Import a project
4. Set up an Integration so RTD automatically builds on detecting changes

[mavenlin]

Could you assist @DyeKuu on this?

I believe the steps should be:

1. Create a RTD account
2. Connect GitHub account to RTD
3. Import a project
4. Set up an Integration so RTD automatically builds on detecting changes

[Kunhao ZHENG]

It seems that I need an admin permission to add a webhook for this repo:

https://docs.github.com/en/organizations/managing-user-access-to-your-organizations-repositories/repository-roles-for-an-organization

https://docs.readthedocs.io/en/latest/integrations.html

[mavenlin]

RTD online

https://jax-xc.readthedocs.io/en/latest/