README.md in prop_check-0.6.1 vs README.md in prop_check-0.6.2

@@ -1,9 +1,14 @@
 # PropCheck
 
 PropCheck allows you to do Property Testing in Ruby.
 
+[![Gem](https://img.shields.io/gem/v/prop_check.svg)](https://rubygems.org/gems/prop_check)
+[![Build Status](https://travis-ci.org/Qqwy/ruby-prop_check.svg?branch=master)](https://travis-ci.org/Qqwy/ruby-prop_check)
+[![Maintainability](https://api.codeclimate.com/v1/badges/71897f5e6193a5124a53/maintainability)](https://codeclimate.com/github/Qqwy/ruby-prop_check/maintainability)
+[![RubyDoc](https://img.shields.io/badge/%F0%9F%93%9ARubyDoc-documentation-informational.svg)](https://www.rubydoc.info/github/Qqwy/ruby-prop_check/master/PropCheck)
+
 It features:
 
 - Generators for common datatypes.
 - An easy DSL to define your own generators (by combining existing ones, or completely custom).
 - Shrinking to a minimal counter-example on failure.
@@ -154,9 +159,12 @@
 
 #### Others
 
 There are even more functions in the `Generator` class and the `Generators` module that you might want to use,
 although above are the most generally useful ones.
+
+[PropCheck::Generator documentation](https://www.rubydoc.info/github/Qqwy/ruby-prop_check/master/PropCheck/Generator)
+[PropCheck::Generators documentation](https://www.rubydoc.info/github/Qqwy/ruby-prop_check/master/PropCheck/Generators)
 
 ## 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.