README.md in parse-cron-ext-0.1.0 vs README.md in parse-cron-ext-0.1.1

@@ -1,10 +1,12 @@
 # parse-cron-ext
 
-Welcome to your new gem! In this directory, you'll find the files you need to be able to package up your Ruby library into a gem. Put your Ruby code in the file `lib/parse/cron/ext`. To experiment with that code, run `bin/console` for an interactive prompt.
+parse-cron-ext is a extension (monkey-patch) for parse-cron 0.1.4, which is the latest version.  
+siebertm/parse-cron: https://github.com/siebertm/parse-cron
 
-TODO: Delete this and the text above, and describe your gem
+Warning:   
+All specs written in parse-cron passed, but Use at your own risk.
 
 ## Installation
 Add this line to your application's Gemfile:
 
 ```ruby
@@ -18,26 +20,64 @@
 Or install it yourself as:
 
     $ gem install parse-cron-ext
 
 ## Usage
+ These notations are inspired by [AWS Cron Expressions](https://docs.aws.amazon.com/AmazonCloudWatch/latest/events/ScheduledEvents.html).
+ 
 
-TODO: Write usage instructions here
+### End of the month by using L notation
+ ```ruby
+   cron_parser = CronParser.new('0 9 L * *')
 
+   time = Time.local(2022, 1, 16, 12, 0)
+   cron_parser.next(time)
+   # => 2022-01-31 09:00
+   
+   time = Time.local(2022, 2, 3, 12, 0)
+   cron_parser.next(time)
+   # => 2022-02-28 09:00
+   
+   
+   # end of March
+   cron_parser = CronParser.new('0 9 L 3 *')
+
+   time = Time.local(2022, 2, 3, 12, 0)
+   cron_parser.next(time)
+   # => 2022-03-31 09:00
+ ```
+
+### Second Sunday, Third Friday...
+ ```ruby
+   # second sunday
+   cron_parser = CronParser.new('0 9 * * SUN#2')
+
+   time = Time.local(2022, 1, 3, 12, 0)
+   cron_parser.next(time)
+   # => 2022-01-09 09:00
+   
+
+   # second sunday in march
+   cron_parser = CronParser.new('0 9 * 3 SUN#2')
+
+   time = Time.local(2022, 1, 3, 12, 0)
+   cron_parser.next(time)
+   # => 2022-03-31 09:00
+ ```
+
 ## 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/[USERNAME]/parse-cron-ext. 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/[USERNAME]/parse-cron-ext/blob/master/CODE_OF_CONDUCT.md).
+Bug reports and pull requests are welcome on GitHub at https://github.com/a5-stable/parse-cron-ext. 
+This project is intended to be a safe, welcoming space for collaboration!
 
+Any Pull Requests or Issues to improve it will be gladly welcome.
+I will check them and react as soon as possible.
 
 ## 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 Parse::Cron::Ext project's codebases, issue trackers, chat rooms and mailing lists is expected to follow the [code of conduct](https://github.com/[USERNAME]/parse-cron-ext/blob/master/CODE_OF_CONDUCT.md).