Add the GitHub Actions to generate the documentations for GitHub Pages.
This update don't force developers to generate the sphinx documents on local computer.
The actions generate the documents and upload the documents to gh-pages branch.
The generated files can be shown on GitHub Pages.
Add the GitHub Actions to generate the documentations for GitHub Pages. This update don't force developers to generate the sphinx documents on local computer. The actions generate the documents and upload the documents to gh-pages branch. The generated files can be shown on GitHub Pages.