aws: Add documentation around aws_sns_topic.

Author: ctiwald

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

@@ -0,0 +1,32 @@
+---
+layout: "aws"
+page_title: "AWS: aws_sns_topic"
+sidebar_current: "docs-aws-resource-sns-topic"
+description: |-
+  Provides an SNS topic
+---
+
+# aws\_sns\_topic
+
+Provides an SNS topic.
+
+## Example Usage
+
+```
+resource "aws_sns_topic" "topic" {
+  name = "topic"
+}
+```
+
+## Argument Reference
+
+The following arguments are supported:
+
+* `name` - (Required) The SNS topic's name.
+
+## Attribute Reference
+
+The following attributes are exported:
+
+* `name` - The name of the topic.
+* `arn` - The ARN assigned by AWS to this topic.

website/source/layouts/aws.erb

@@ -140,6 +140,10 @@
                                                         <a href="/docs/providers/aws/r/security_group_rule.html">aws_security_group_rule</a>
                                                 </li>
 
+						<li<%= sidebar_current("docs-aws-resource-sns-topic") %>>
+							<a href="/docs/providers/aws/r/sns_topic.html">aws_sns_topic</a>
+						</li>
+
 						<li<%= sidebar_current("docs-aws-resource-subnet") %>>
 							<a href="/docs/providers/aws/r/subnet.html">aws_subnet</a>
 						</li>