fix: add config.json file to sync the docs to website (#31)

Co-authored-by: bzp2010 <bzp2010@apache.org>
Co-authored-by: bzp2010 <bzp2010@apache.org>
Co-authored-by: liuxiran <liuxiran@apache.org>
Co-authored-by: bzp2010 <bzp2010@apache.org>