hoon: add comment about .nut in +ax
--
::
++ ax
- =+ :* :: dom: axis to home
- :: hay: wing to home
- :: cox: hygienic context
- :: bug: debug annotations
- :: def: default expression
+ =+ :* :: .dom: axis to home
+ :: .hay: wing to home
+ :: .cox: hygienic context
+ :: .bug: debug annotations
+ :: .nut: doccord annotations
+ :: .def: default expression
::
dom=`axis`1
hay=*wing
