README.md in hash_ext-0.2.1 vs README.md in hash_ext-0.2.2

@@ -90,14 +90,9 @@
 hash[:a] = 3
 
 hash.keys # => [:a, :b, :c]
 ```
 
-## Development
-
-After checking out the repo, run `bin/setup` to install dependencies. Then, run `rake test` to run the tests. You can also run `bin/console` for an interactive prompt that will allow you to experiment.
-
-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/gabynaiman/hash_ext.