Pivot Docs Root

Obligatory forking of the code base for the benefit of antora:

Get build to fork the repo. (LIVE)

Configure CI/CD jobs. (LIVE)

Setup builds http://review.couchbase.org/c/manifest/+/141616 (LIVE)

Update master to 2.2 before docs staging goes live (http://review.couchbase.org/c/couchbase-operator/+/141624) (LIVE)

Update docs site (https://github.com/couchbase/docs-site/pull/307)**

Update docs staging (https://github.com/couchbase/docs-site/pull/308) (LIVE)