README.md in safelylaunch-0.0.0 vs README.md in safelylaunch-0.1.0

@@ -1,11 +1,9 @@
 # Safelylaunch
 
-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/safelylaunch`. To experiment with that code, run `bin/console` for an interactive prompt.
+Ruby client for SafelyLaunch project
 
-TODO: Delete this and the text above, and describe your gem
-
 ## Installation
 
 Add this line to your application's Gemfile:
 
 ```ruby
@@ -20,24 +18,68 @@
 
     $ gem install safelylaunch
 
 ## Usage
 
-TODO: Write usage instructions here
+### Initialization
+First step: require client
 
+```ruby
+require 'safelylaunch'
+```
+
+After that you need to create connection object and use it as a client instance dependency:
+
+```ruby
+connection = Safelylaunch::HttpConnection.new(
+  api_token: 'your env token', # required
+  host: 'your project instance host', # optional, default 'TODO'
+  logger: Logger.new, # optional, default Logger.new
+  cache_time: 10 # optional, how long cache requests in seconds. If `nil` will disable cache. Default `nil`
+)
+
+client = Safelylaunch::Client.new(connection)
+```
+
+### Usage
+Now we support only bool toggles without any params
+
+```ruby
+client.enable?('toggle-key') # => bool value
+```
+
+### Testing
+You can use mock connection for easy testing. It will store all defined toggles in memory and use it in your code:
+
+```ruby
+connection = Safelylaunch::MockConnection.new(
+  toggles: {
+    'toggle-key' => true,
+    'disable-toggle-key' => false,
+  }
+  logger: Logger.new # optional, default Logger.new
+)
+
+client = Safelylaunch::Client.new(connection)
+client.enable?('toggle-key') # => true
+client.enable?('disable-toggle-key') # => false
+```
+
 ## 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]/safelylaunch. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the [Contributor Covenant](http://contributor-covenant.org) code of conduct.
+Bug reports and pull requests are welcome on GitHub at https://github.com/safelylaunch/ruby-client. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the [Contributor Covenant](http://contributor-covenant.org) code of conduct.
 
 ## 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 Safelylaunch project’s codebases, issue trackers, chat rooms and mailing lists is expected to follow the [code of conduct](https://github.com/[USERNAME]/safelylaunch/blob/master/CODE_OF_CONDUCT.md).
+Everyone interacting in the Safelylaunch project’s codebases, issue trackers, chat rooms and mailing lists is expected to follow the [code of conduct](https://github.com/safelylaunch/ruby-client/blob/master/CODE_OF_CONDUCT.md).
+
+## About SafelyLaunch