updated accessibility options

Author: schnuerle

data-types.md

@@ -25,7 +25,7 @@ A vehicle record is as follows:
 | `vehicle_type`       | Enum     | Required              | The [vehicle type][vehicle-types] |
 | `vehicle_attributes` | Array    | Optional              |**[Mode](/modes#list-of-supported-modes) Specific**. [Vehicle attributes](/modes#vehicle-attributes) given as mode-specific unordered key-value pairs |
 | `propulsion_types`   | Enum[]   | Required              | Array of [propulsion types][propulsion-types]; allows multiple values |
-| `accessibility_options` | Enum[] | Required             | **[Mode](/modes#list-of-supported-modes) Specific**. [Accessibility options](/modes#accessibility-options) given as an array of enumerated values. |
+| `accessibility_options` | Enum[] | Required             | **[Mode](/modes#list-of-supported-modes) Specific**. [Accessibility options](/modes#accessibility-options) given as an array of enumerated values. List of any accessibility options available on the vehicle. |
 | `battery_capacity`   | Integer  | Required if Available | Capacity of battery expressed as milliamp hours (mAh) |
 | `fuel_capacity`      | Integer  | Required if Available | Capacity of fuel tank (liquid, solid, gaseous) expressed in liters |
 
@@ -210,6 +210,7 @@ A Trip is defined by the following structure:
 | `duration`               | Integer         | Required               | Time, in Seconds |
 | `distance`               | Integer         | Required               | Trip Distance, in Meters |
 | `publication_time`       | [Timestamp][ts] | Optional               | Date/time that trip became available through the trips endpoint |
+| `accessibility_options` | Enum[] | Required             | **[Mode](/modes#list-of-supported-modes) Specific**. [Accessibility options](/modes#accessibility-options) given as an array of enumerated values. List of any accessibility options used during the trip. |
 | `parking_verification_url` | URL | Optional | A URL to a photo (or other evidence) of proper vehicle parking |
 | `standard_cost` | Integer | Optional | The cost, in the currency defined in `currency`, to perform that trip in the standard operation of the System (see [Costs & Currencies][costs-and-currencies]) |
 | `actual_cost` | Integer | Optional | The actual cost, in the currency defined in `currency`, paid by the customer of the *mobility as a service* provider (see [Costs & Currencies][costs-and-currencies]) |