README.md in gridium-0.1.20 vs README.md in gridium-0.1.21

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+ new
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 [Automation Pyramid - Theory](http://www.electricsheepdreams.com/2014/12/4/zje1wyef0621gv1w4r7tn3g7h3j19h)  
 
 ## Contributing
 
-Bug reports and pull requests are welcome on GitHub at https://github.com/sethuster/gridium. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the [Contributor Covenant](contributor-covenant.org) code of conduct.
+Bug reports and pull requests are welcome on GitHub at https://github.com/sethuster/gridium. 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](http://opensource.org/licenses/MIT).