README.md in rubocop-rubycw-0.1.2 vs README.md in rubocop-rubycw-0.1.3

- old
+ new

@@ -2,10 +2,16 @@
 
 Integrate RuboCop and `ruby -cw`.
 
 You can get Ruby's warning as a RuboCop offense by rubocop-rubycw.
 
+## Requirements
+
+* Ruby 2.3 or greater.
+  * But I highly recommend to use Ruby 2.6 or greater.
+    Because it is about 10x slower if it works on Ruby 2.5 or lower.
+
 ## Installation
 
 Add this line to your application's Gemfile:
 
 ```ruby
@@ -34,7 +40,7 @@
 
 To install this gem onto your local machine, run `bundle exec rake install`. To release a new version, update the version number in `version.rb`, and then run `bundle exec rake release`, which will create a git tag for the version, push git commits and tags, and push the `.gem` file to [rubygems.org](https://rubygems.org).
 
 ## Contributing
 
-Bug reports and pull requests are welcome on GitHub at https://github.com/pocke/rubocop-rubycw.
+Bug reports and pull requests are welcome on GitHub at https://github.com/rubocop-hq/rubocop-rubycw.
 