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         <li>References</li>
         <li><a href="https://git-scm.com/book">Git Book</a></li>
         <li><a href="https://github.com/davidgf/design-patterns-in-ruby">GoF Design patterns in Ruby</a></li>
-        <li><a href="href=https://github.com/piscolomo/ruby-patterns/blob/master/README.md">ruby patterns</a></li>
         <li><a href="https://github.com/bbatsov/rubocop/blob/master/config/default.yml">rubocop yml</a></li>
         <li><a href="http://danwin.com/2013/03/ruby-minitest-cheat-sheet/">minitest cheatsheet</a></li>
         <li><a href="http://www.mattsears.com/articles/2011/12/10/minitest-quick-reference/">minitest (mattsears)</a></li>
         <li><a href="http://overapi.com/">API CheatSheets</a></li>
         <li><a href="http://www.restapitutorial.com/httpstatuscodes.html">http status codes</a></li>
+        <li><a href="http://billpatrianakos.me/blog/2013/10/13/list-of-rails-status-code-symbols/">rails status symbols</a></li>
         <li><a href="https://semver.npmjs.com/">npm version tester</a></li>
       </ul>