Fix Patroni runbook URLs and titles
I found that the description of autogenerated links were repetitive when working in the creation of a runbook on how to replace an unhealthy replica from patroni cluster https://gitlab.com/gitlab-com/gl-infra/reliability/-/issues/15360, because multiple documents had the same title "Patroni"
I also found that the content to scale up/down patroni clusters in the Patroni Cluster Management runbook was out dated, and I replaced the content to the link to the proper runbooks.