providers/aws: Add docs for S3 website

website/source/docs/providers/aws/r/s3_bucket.html.markdown

@@ -12,6 +12,8 @@ Provides a S3 bucket resource.
 
 ## Example Usage
 
+### Private Bucket w/ Tags
+
 ```
 resource "aws_s3_bucket" "b" {
     bucket = "my_tf_test_bucket"
@@ -24,17 +26,37 @@ resource "aws_s3_bucket" "b" {
 }
 ```
 
+### Static Website Hosting
+
+```
+resource "aws_s3_bucket" "b" {
+    bucket = "s3-website-test.hashicorp.com"
+    acl = "public-read"
+
+    website {
+        index_document = "index.html"
+        error_document = "error.html"
+    }
+}
+```
+
 ## Argument Reference
 
 The following arguments are supported:
 
 * `bucket` - (Required) The name of the bucket.
 * `acl` - (Optional) The [canned ACL](http://docs.aws.amazon.com/AmazonS3/latest/dev/acl-overview.html#canned-acl) to apply. Defaults to "private".
 * `tags` - (Optional) A mapping of tags to assign to the bucket.
+* `website` - (Optional) A website object (documented below).
+
+The website object supports the following:
+
+* `index_document` - (Required) Amazon S3 returns this index document when requests are made to the root domain or any of the subfolders.
+* `error_document` - (Optional) An absolute path to the document to return in case of a 4XX error.
 
 ## Attributes Reference
 
 The following attributes are exported:
 
-* `id` - The name of the bucket
-
+* `id` - The name of the bucket.
+* `website_endpoint` - The website endpoint, if the bucket is configured with a website. If not, this will be an empty string.