CONTRIBUTING.md in ruby-lokalise-api-4.3.1

- old
+ new

@@ -2,10 +2,10 @@
 
 1. [Fork the repository.][fork]
 2. [Create a topic branch.][branch]
 3. Implement your feature or bug fix.
 4. Don't forget to add specs and make sure they pass by running `rspec .`.
-5. Make sure your code complies with the style guide by running `rubocop`. `rubocop -a` can automatically fix most issues for you.
+5. Make sure your code complies with the style guide by running `rubocop`. `rubocop -a` can automatically fix most issues for you. Run `rubocop -A` to make it more aggressive.
 6. If necessary, add documentation for your feature or bug fix.
 7. Commit and push your changes.
 8. [Submit a pull request.][pr]
 
 [fork]: http://help.github.com/fork-a-repo/