enhancement(is_lb_pool_member): Fix doc

Author: keerthi-gp

website/docs/r/is_lb_pool_member.html.markdown

@@ -75,7 +75,7 @@ Review the argument references that you can specify for your resource.
 - `pool` - (Required, Forces new resource, String) The load balancer pool unique identifier.
 - `port`- (Required, Integer) The port number of the application running in the server member.
 - `target_address` - (Required, String) The IP address of the pool member.
-- `target_id` - (Required, String) The unique identifier for the virtual server / application load balancer instance pool member. Required for network load balancer.
+- `target_id` - (Required, String) The unique identifier for the virtual server instance or application load balancer pool member. Required for network load balancer.
 
 - `weight` - (Optional, Integer) Weight of the server member. This option takes effect only when the load-balancing algorithm of its belonging pool is `weighted_round_robin`, Minimum allowed weight is `0` and Maximum allowed weight is `100`. Default: 50, Weight of the server member. Applicable only if the pool algorithm is weighted_round_robin.