dev.ost.com v1.0.0 Fixes | corrections from help.ost.com ticket #4200

[noslav]

https://ost.freshdesk.com/a/tickets/4200

• Plural is missing in this sentence (compared to sample response):
  "On calling /actions the data.result_type is the string "action" and the key data.action
  is an array containing the requested action objects."
  ie. data.actions is the array not data.action

• /transaction/list Typo. There is a double // in the GET pink request example:
  GET - "https://sandboxapi.ost.com/v1//transactions/?..."

• There is no explicit mention anywhere in the API docs that the timestamp value is in milliseconds (trailing 000s) which was a cause for initial confusion as to why timestamp values where not saving/converting properly.

• Across the list API docs make it clear that "optional_filters" is not a parameter as this is misleading