Updating Launch Config Docs for Name attribute

Hopefully this will help clear up this type of confusion https://github.com/hashicorp/terraform/issues/2958

website/source/docs/providers/aws/r/launch_configuration.html.markdown

@@ -10,6 +10,8 @@ description: |-
 
 Provides a resource to create a new launch configuration, used for autoscaling groups.
 
+~> **NOTE:** You may want to omit `name` attribute from attached `aws_launch_configuration`. When you [create](http://docs.aws.amazon.com/AutoScaling/latest/DeveloperGuide/LaunchConfiguration.html) a launch configuration, you cannot edit it. Terraform will treat a change in this resource as a destroy and create action. If you add a name to your launch configuration, then terraform will not be able to create the replacement launch configuration due to the name being the same.
+
 ## Example Usage
 
 ```