Contributing guide: Broken link to code of conduct

[hrodrick]

the link to the code of conduct is broken in the file open-source/rootstrap_contributing_guide.md. It returns a 404.

Actually the link is: https://github.com/rootstrap/{repository}/blob/master/CODE_OF_CONDUCT.md Should it be this one?: https://opensource.guide/code-of-conduct/ (it is the link that appears on the open-source/readme.md file)