Nodes info API docs missing list of valid metrics

[DaveCTurner]

Today the GET _nodes/{nodeId}/{metric} API docs (link) describe the metric parameter as "Limits the information returned to the specific metrics. Supports a comma-separated list, such as http,ingest" but there's no list of the metrics in the docs any more. It was there in the 8.18 docs.

[DiannaHohensee]

For context, this request originated in a PR thread discussion.