Merge pull request #17089 from brent-au/GH-17066

fix autoscaling_group attribute 'instance_warmup'

website/docs/r/autoscaling_group.html.markdown

@@ -402,7 +402,7 @@ This configuration block supports the following:
 
 * `strategy` - (Required) The strategy to use for instance refresh. The only allowed value is `Rolling`. See [StartInstanceRefresh Action](https://docs.aws.amazon.com/autoscaling/ec2/APIReference/API_StartInstanceRefresh.html#API_StartInstanceRefresh_RequestParameters) for more information.
 * `preferences` - (Optional) Override default parameters for Instance Refresh.
-    * `instance_warmup_seconds` - (Optional) The number of seconds until a newly launched instance is configured and ready to use. Default behavior is to use the Auto Scaling Group's health check grace period.
+    * `instance_warmup` - (Optional) The number of seconds until a newly launched instance is configured and ready to use. Default behavior is to use the Auto Scaling Group's health check grace period.
     * `min_healthy_percentage` - (Optional) The amount of capacity in the Auto Scaling group that must remain healthy during an instance refresh to allow the operation to continue, as a percentage of the desired capacity of the Auto Scaling group. Defaults to `90`.
 * `triggers` - (Optional) Set of additional property names that will trigger an Instance Refresh. A refresh will always be triggered by a change in any of `launch_configuration`, `launch_template`, or `mixed_instances_policy`.