Forgotten .yardopts, other updates

.rspec

@@ -1,2 +1,4 @@
---color
 --format documentation
+--color
+--fail-fast
+--order random

.yardopts

@@ -3,3 +3,4 @@
 --charset utf-8
 -
 LICENSE.md
+CHANGELOG.md

README.md

@@ -95,16 +95,16 @@ Released under the MIT License. See the [LICENSE][] file for further details.
 [Documentation]: http://rubydoc.info/gems/boolean_class
 [Source]: https://github.com/elgalu/boolean_class
 [Bugtracker]: https://github.com/elgalu/boolean_class/issues
+
 [Gem Version]: https://rubygems.org/gems/boolean_class
+[Build Status]: https://travis-ci.org/elgalu/boolean_class
+[travis pull requests]: https://travis-ci.org/elgalu/boolean_class/pull_requests
+[Dependency Status]: https://gemnasium.com/elgalu/boolean_class
+[Code Climate]: https://codeclimate.com/github/elgalu/boolean_class
 [Coverage Status]: https://coveralls.io/r/elgalu/boolean_class
 
+[GV img]: https://badge.fury.io/rb/boolean_class.png
 [BS img]: https://travis-ci.org/elgalu/boolean_class.png
 [DS img]: https://gemnasium.com/elgalu/boolean_class.png
 [CC img]: https://codeclimate.com/github/elgalu/boolean_class.png
-[GV img]: https://badge.fury.io/rb/boolean_class.png
 [CS img]: https://coveralls.io/repos/elgalu/boolean_class/badge.png?branch=master
-
-[Build Status]: https://travis-ci.org/elgalu/boolean_class
-[travis pull requests]: https://travis-ci.org/elgalu/boolean_class/pull_requests
-[Dependency Status]: https://gemnasium.com/elgalu/boolean_class
-[Code Climate]: https://codeclimate.com/github/elgalu/boolean_class

boolean_class.gemspec

@@ -31,6 +31,6 @@ Gem::Specification.new do |gem|
   gem.add_development_dependency "redcarpet", ">= 2.2"
   gem.add_development_dependency "yard", ">= 0.8"
   gem.add_development_dependency "simplecov", ">= 0.7"
-  gem.add_development_dependency 'coveralls', '>=0.5.7'
+  gem.add_development_dependency 'coveralls', '>= 0.5.7'
 
 end