Dahlia's documentation publishing flow

[Mark1626]

Currently the Dahlia's documentation in https://capra.cs.cornell.edu/fuse/docs/overview/ is using Docusaurus. The publishing flow seems to be manual. Some of the current doc changes have not been updated to the public url yet.

As suggested by @rachitnigam maybe this could be host it in Github pages with CI, so any changes are automatically published. Also if the docs could be migrated to mdbook like the Calyx docs