fix typo

website/docs/r/lb_target_group.html.markdown

@@ -68,7 +68,7 @@ for a complete reference.
 * `timeout` - (Optional) The amount of time, in seconds, during which no response means a failed health check. For Application Load Balancers, the range is 2 to 60 seconds and the default is 5 seconds. For Network Load Balancers, you cannot set a custom value, and the default is 10 seconds for TCP and HTTPS health checks and 6 seconds for HTTP health checks.
 * `healthy_threshold` - (Optional) The number of consecutive health checks successes required before considering an unhealthy target healthy. Defaults to 5.
 * `unhealthy_threshold` - (Optional) The number of consecutive health check failures required before considering the target unhealthy. Defaults to 2.
-* `matcher` (Optiona, only supported on Application Load Balancers): The HTTP codes to use when checking for a successful response from a target. You can specify multiple values (for example, "200,202") or a range of values (for example, "200-299").
+* `matcher` (Optional, only supported on Application Load Balancers): The HTTP codes to use when checking for a successful response from a target. You can specify multiple values (for example, "200,202") or a range of values (for example, "200-299").
 
 ## Attributes Reference