Extend runbooks with Redis Cluster scaling and resharding guide
This issue outlines the details we need to add to runbooks after formalizing the scaling and resharding process for Redis Cluster
Details to be added
- Scaling the cluster: instance provisioning and how new nodes can "join" the pre-existing cluster
- Resharding: migrating slots between nodes
- Failure handling: what could go wrong in (1) and (2) and troubleshooting guides
- Monitoring gotchas