[Starlingx-discuss] [docs] update on broken links from https://docs.starlingx.io/

Early this morning, we had a PR merge to improve and consolidate left-pane navigation on https://docs.starlingx.io/, but it had unintended consequences for links from some of the landing pages. That PR was https://review.opendev.org/669933. Strangely, our validation on the Zuul build<http://logs.openstack.org/33/669933/3/check/openstack-tox-docs/2c6ca13/html/> showed (and still shows) no broken links for that PR, but the actual live merged page did have issues. This is now fixed with the recently merged https://review.opendev.org/#/c/670153/. Thx. -- Mike and team