neb/doc/server-purpose-legend.md

Server purpose legend:

• link: metrics, notfications, ssh access to network, master node.
• apoc: Git, CI, IdP, Mail, org tools.
• keymaker: static site hosting and minor tools.
• kid: entertainment, non-vital infra.
• mouse: experimental services*

*: mouse may have lots of downtime and is not supposed to house any vital infra.