Change the link protocol to HTTPS

Author: kayw-geek

code-of-conduct.md

@@ -62,7 +62,7 @@ the project's leadership.
 
 This Code of Conduct is adapted from the [Contributor Covenant][homepage],
 version 1.4.0, available at
-[http://contributor-covenant.org/version/1/4/][version]
+[https://contributor-covenant.org/version/1/4/][version]
 
-[homepage]: http://contributor-covenant.org
-[version]: http://contributor-covenant.org/version/1/4/
+[homepage]: https://contributor-covenant.org
+[version]: https://contributor-covenant.org/version/1/4/