README.md in verizon_token-0.2.0 vs README.md in verizon_token-0.2.1

@@ -51,6 +51,16 @@
 
 ### Decrypt
 
 ```
 ectoken -k <key> -t <encrypted token> -d
-```
+```
+
+## Development
+
+After checking out the repo, run `bin/setup` to install dependencies. Then, run `rake spec` 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/mauricioabreu/ectoken-ruby
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