Healthcheck.md in fastly-4.0.0

- old
+ new
@@ -2,20 +2,21 @@
 
 ## Properties
 
 | Name | Type | Description | Notes |
 | ---- | ---- | ----------- | ----- |
-| **check_interval** | **Integer** | How often to run the healthcheck in milliseconds. | [optional] |
+| **check_interval** | **Integer** | How often to run the health check in milliseconds. | [optional] |
 | **comment** | **String** | A freeform descriptive note. | [optional] |
 | **expected_response** | **Integer** | The status code expected from the host. | [optional] |
+| **headers** | **Array&lt;String&gt;** | Array of custom headers that will be added to the health check probes. | [optional] |
 | **host** | **String** | Which host to check. | [optional] |
 | **http_version** | **String** | Whether to use version 1.0 or 1.1 HTTP. | [optional] |
 | **initial** | **Integer** | When loading a config, the initial number of probes to be seen as OK. | [optional] |
 | **method** | **String** | Which HTTP method to use. | [optional] |
-| **name** | **String** | The name of the healthcheck. | [optional] |
+| **name** | **String** | The name of the health check. | [optional] |
 | **path** | **String** | The path to check. | [optional] |
-| **threshold** | **Integer** | How many healthchecks must succeed to be considered healthy. | [optional] |
+| **threshold** | **Integer** | How many health checks must succeed to be considered healthy. | [optional] |
 | **timeout** | **Integer** | Timeout in milliseconds. | [optional] |
-| **window** | **Integer** | The number of most recent healthcheck queries to keep for this healthcheck. | [optional] |
+| **window** | **Integer** | The number of most recent health check queries to keep for this health check. | [optional] |
 
 [[Back to API list]](../../README.md#endpoints) [[Back to README]](../../README.md)
 