Merge pull request #41 from lxxxvi/fix-readme

Fix readme

README.md

@@ -66,7 +66,7 @@ Rails/ShortI18n:
 Add this line to your application's Gemfile:
 
 ```ruby
-gem 'ruboclean', require: false
+gem "ruboclean", require: false
 ```
 
 And then execute:
@@ -113,12 +113,12 @@ To install this gem onto your local machine, run `bundle exec rake install`. To
 
 ## Contributing
 
-Bug reports and pull requests are welcome on GitHub at https://github.com/lxxxvi/ruboclean. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the [code of conduct](https://github.com/lxxxvi/ruboclean/blob/master/CODE_OF_CONDUCT.md).
+Bug reports and pull requests are welcome on GitHub at https://github.com/lxxxvi/ruboclean. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the [code of conduct](https://github.com/lxxxvi/ruboclean/blob/main/CODE_OF_CONDUCT.md).
 
 ## License
 
 The gem is available as open source under the terms of the [MIT License](https://opensource.org/licenses/MIT).
 
 ## Code of Conduct
 
-Everyone interacting in the Ruboclean project's codebases, issue trackers, chat rooms and mailing lists is expected to follow the [code of conduct](https://github.com/lxxxvi/ruboclean/blob/master/CODE_OF_CONDUCT.md).
+Everyone interacting in the Ruboclean project's codebases, issue trackers, chat rooms and mailing lists is expected to follow the [code of conduct](https://github.com/lxxxvi/ruboclean/blob/main/CODE_OF_CONDUCT.md).