chore: update version documentation in task properties table

Author: juliusl

articles/container-registry/container-registry-tasks-reference-yaml.md

@@ -76,7 +76,7 @@ Task properties typically appear at the top of an `acr-task.yaml` file, and are
 
 | Property | Type | Optional | Description | Override supported | Default value |
 | -------- | ---- | -------- | ----------- | ------------------ | ------------- |
-| `version` | string | Yes | The version of the `acr-task.yaml` file as parsed by the ACR Tasks service. While ACR Tasks strives to maintain backward compatibility, this value allows ACR Tasks to maintain compatibility within a defined version. If unspecified, defaults to the latest version. | No | None |
+| `version` | string | Yes | The version of the `acr-task.yaml` file as parsed by the ACR Tasks service. While ACR Tasks strives to maintain backward compatibility, this value allows ACR Tasks to maintain compatibility within a defined version. If unspecified, defaults to `v1.0.0`. | N/A | `v1.0.0` |
 | `stepTimeout` | int (seconds) | Yes | The maximum number of seconds a step can run. If the `stepTimeout` property is specified on a task, it sets the default `timeout` property of all the steps. If the `timeout` property is specified on a step, it overrides the `stepTimeout` property provided by the task.<br/><br/>The sum of the step timeout values for a task should equal the value of the task's run `timeout` property (for example, set by passing `--timeout` to the `az acr task create` command). If the tasks's run `timeout` value is smaller, it takes priority.  | Yes | 600 (10 minutes) |
 | `workingDirectory` | string | Yes | The working directory of the container during runtime. If the property is specified on a task, it sets the default `workingDirectory` property of all the steps. If specified on a step, it overrides the property provided by the task. | Yes | `c:\workspace` in Windows or `/workspace` in Linux |
 | `env` | [string, string, ...] | Yes |  Array of strings in `key=value` format that define the environment variables for the task. If the property is specified on a task, it sets the default `env` property of all the steps. If specified on a step, it overrides any environment variables inherited from the task. | Yes | None |