Added example of how the Option settings works (#8413)

It took me some googling to find this and thought it would be good to have an example of how that structure is meant to be right in the docs.

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

@@ -76,6 +76,32 @@ The `setting` and `all_settings` mappings support the following format:
 * `value` - value for the configuration option
 * `resource` - (Optional) resource name for [scheduled action](http://docs.aws.amazon.com/elasticbeanstalk/latest/dg/command-options-general.html#command-options-general-autoscalingscheduledaction)
 
+### Example With Options
+
+```
+resource "aws_elastic_beanstalk_application" "tftest" {
+  name = "tf-test-name"
+  description = "tf-test-desc"
+}
+
+resource "aws_elastic_beanstalk_environment" "tfenvtest" {
+  name = "tf-test-name"
+  application = "${aws_elastic_beanstalk_application.tftest.name}"
+  solution_stack_name = "64bit Amazon Linux 2015.03 v2.0.3 running Go 1.4"
+  setting {
+    namespace = "aws:ec2:vpc"
+    name      = "VPCId"
+    value     = "vpc-xxxxxxxx"
+  }
+
+  setting {
+    namespace = "aws:ec2:vpc"
+    name      = "Subnets"
+    value     = "subnet-xxxxxxxx"
+  }  
+}
+```
+
 ## Attributes Reference
 
 The following attributes are exported:
@@ -107,4 +133,4 @@ Elastic Beanstalk Environments can be imported using the `id`, e.g.
 
 ```
 $ terraform import aws_elastic_beanstalk_environment.prodenv e-rpqsewtp2j
-```
+```