Add RuboCop as a .config supporting tool

[revolter]

rubocop/rubocop#12700

[bitboxer]

@ssbarnea I am starting to create PRs on projects where I add the possiblity to have the config in the .config folder, for that I would love to have this website have at least rubocop added before starting outreach.

The more 'big tools' are on the list, the better the argument for this.

Can you merge this in the near future? That would be great <3 .

If you lost interest in the project I totally would understand. THen I will create my own version of the page.

[bitboxer]

Ah and the rubocop documentation for the config can be found here:

https://docs.rubocop.org/rubocop/1.66/configuration.html