Add website docs.

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

@@ -18,6 +18,13 @@ resource "aws_elb" "bar" {
   name = "foobar-terraform-elb"
   availability_zones = ["us-west-2a", "us-west-2b", "us-west-2c"]
 
+  access_logs {
+    enabled = true
+    bucket = "foo"
+    bucket_prefix = "bar"
+    interval = 60
+  }
+
   listener {
     instance_port = 8000
     instance_protocol = "http"
@@ -58,6 +65,7 @@ resource "aws_elb" "bar" {
 The following arguments are supported:
 
 * `name` - (Optional) The name of the ELB. By default generated by terraform.
+* `access_logs` - (Optional) An Access Logs block. Access Logs documented below.
 * `availability_zones` - (Required for an EC2-classic ELB) The AZ's to serve traffic in.
 * `security_groups` - (Optional) A list of security group IDs to assign to the ELB.
 * `subnets` - (Required for a VPC ELB) A list of subnet IDs to attach to the ELB.
@@ -74,6 +82,13 @@ The following arguments are supported:
 Exactly one of `availability_zones` or `subnets` must be specified: this
 determines if the ELB exists in a VPC or in EC2-classic.
 
+Access Logs support the following:
+
+* `bucket` - (Required) The S3 bucket name to store the logs in.
+* `bucket_prefix` - (Optional) The S3 bucket prefix. Logs are stored in the root if not configured.
+* `enabled` - (Optional) Whether capturing access logs is enabled. Default: true.
+* `interval` - (Optional) The publishing interval in minutes. Default: 60 minutes.
+
 Listeners support the following:
 
 * `instance_port` - (Required) The port on the instance to route to