Uses the AWS Code of Conduct, resolves aws-samples#482

Author: buzzsurfr

CODE_OF_CONDUCT.adoc

@@ -0,0 +1,4 @@
+== Code of Conduct
+This project has adopted the link:https://aws.github.io/code-of-conduct[Amazon Open Source Code of Conduct].
+For more information see the link:https://aws.github.io/code-of-conduct-faq[Code of Conduct FAQ] or contact
+[email protected] with any additional questions or comments.