Update README.md

Add Code of Conduct link

Author: Doug Mahugh

README.md

@@ -118,3 +118,5 @@ Please see the [contributing guidelines](CONTRIBUTING.md).
 
 ## Copyright
 Copyright (c) 2017 Microsoft. All rights reserved.
+
+This project has adopted the [Microsoft Open Source Code of Conduct](https://opensource.microsoft.com/codeofconduct/). For more information see the [Code of Conduct FAQ](https://opensource.microsoft.com/codeofconduct/faq/) or contact [opencode@microsoft.com](mailto:opencode@microsoft.com) with any additional questions or comments.