conn: document /info type
** (unit).
**
** the %peel path /help produces a list of available commands.
-** /args produces the command-line arguments used to start vere.
** /info produces runtime metrics at the moment in time that the
** request was received.
**
+** the type produced by /info is currently:
+**
+** (list [cord (list [cord (list [cord @])])])
+**
+** where the first layer of cord is major subsystem ('http',
+** 'ames', or 'work'), the second layer is instance identifier
+** or 'all', and the third is metric name. most metrics are @ud,
+** but the precise interpretation depends on the metric.
+**
** %ovum is a raw kernel move, to be injected directly into
** arvo. needless to say this will void your warranty. usually
** you want to use %fyrd instead. an update will be sent: %done
