Pull Sonarr commit 'Update contributing.md Github docs URL'

Pull https://github.com/Sonarr/Sonarr/commit/4e81b330061a758ec8ad37dbe648694187226687

```
git cherry-pick -ex 4e81b330061a758ec8ad37dbe648694187226687
```

This commit has 1 conflict(s)


You can ask me to `close all`, `open pr here` or `open pr everywhere`