Add Code of Conduct and update Maintainers

Author: TylerLeonhardt

README.md

@@ -131,13 +131,22 @@ on how to contribute to this extension!
 
 ## Maintainers
 
-- [David Wilson](https://github.com/daviwil) - [@daviwil](http://twitter.com/daviwil)
 - [Keith Hill](https://github.com/rkeithhill) - [@r_keith_hill](http://twitter.com/r_keith_hill)
-- [Kapil Borle](https://github.com/kapilmb) - [@kmborle](http://twitter.com/kmborle)
-- [Trevor Sullivan](https://github.com/pcgeek86) - [@pcgeek86](http://twitter.com/pcgeek86)
+- [Tyler Leonhardt](https://github.com/tylerl0706) - [@TylerLeonhardt](http://twitter.com/tylerleonhardt)
+- [David Wilson](https://github.com/daviwil) - [@daviwil](http://twitter.com/daviwil)
 
 ## License
 
 This extension is [licensed under the MIT License](LICENSE.txt).  Please see the
 [third-party notices](Third%20Party%20Notices.txt) file for details on the third-party
 binaries that we include with releases of this project.
+
+## [Code of Conduct][conduct-md]
+
+This project has adopted the [Microsoft Open Source Code of Conduct][conduct-code].
+For more information see the [Code of Conduct FAQ][conduct-FAQ] or contact [[email protected]][conduct-email] with any additional questions or comments.
+
+[conduct-code]: http://opensource.microsoft.com/codeofconduct/
+[conduct-FAQ]: http://opensource.microsoft.com/codeofconduct/faq/
+[conduct-email]: mailto:[email protected]
+[conduct-md]: https://github.com/PowerShell/PowerShell/tree/master/./CODE_OF_CONDUCT.md