Add 0.291 docs

[wanglinsong]

No description provided.

[ZacBlanco]

@wanglinsong can you apply this patch to the PR
docs.patch

[ZacBlanco]

Also, I noticed the CI failed. I think this may be due to GH actions recently updating the default nodejs version in their runners. We have the node version set explicitly in the actions/setup-node step

The action may need an update..

[steveburnett]

LGTM! (docs)

Pull branch and reviewed the HTML in the branch, starting at
file:///Users/steveburnett/Documents/GitHub/prestodb.github.io/website/static/docs/0.291/index.html

The 0.291 release notes are present, the headers say 0.291. Random sampling throughout the site showed me no problems with the docs in /website/static/docs/0.291/.

[steveburnett]

If you want me to pull and review again after @ZacBlanco's docs-patch is applied, just ask and I will look again.

[ZacBlanco]

Thanks @yhwang , the PR looks good now