Changed objects to meet noun_verb/adverb convention (#2506)

Author: yoshizzle

docs/src/data/objects/linode.yaml

@@ -139,7 +139,7 @@ schema:
  value: running
  filterable: true
  _pylib_volatile: true
- transfer:
+ transfer_total:
  type: Integer
  description: The amount of outbound traffic used this month.
  value: 20000