CONTRIBUTING.md in jazzy-0.7.2 vs CONTRIBUTING.md in jazzy-0.7.3

@@ -1,4 +1,10 @@
+## Code of Conduct
+
+This project adheres to the [Contributor Covenant Code of Conduct](https://realm.io/conduct).
+By participating, you are expected to uphold this code. Please report
+unacceptable behavior to [[e-mail]](mailto:[e-mail]).
+
 ## Tracking changes
 
 All changes should be made via pull requests on GitHub.
 
 When issuing a pull request, please add a summary of your changes to