Fix bad Markdown syntax in gcp_audit_log_api source doc

Author: cbruno10

docs/sources/gcp_audit_log_api.md

@@ -45,4 +45,4 @@ partition "gcp_audit_log" "my_logs_admin_data_access" {
 | Argument   | Type             | Required | Default                  | Description                                                                                                                   |
 |------------|------------------|----------|--------------------------|-------------------------------------------------------------------------------------------------------------------------------|
 | connection | `connection.gcp` | No       | `connection.gcp.default` | The [GCP connection](https://hub.tailpipe.io/plugins/turbot/gcp#connection-credentials) to use to connect to the GCP account. |
-| log_types  | List<String>     | No       | []                       | A list of [audit log types](https://cloud.google.com/logging/docs/audit#types) to retrieve. If no types are specified, all log types are retrieved. Valid values: activity, data_access, system_event. |
+| log_types  | List(String)     | No       | []                       | A list of [audit log types](https://cloud.google.com/logging/docs/audit#types) to retrieve. If no types are specified, all log types are retrieved. Valid values: activity, data_access, system_event. |