README.md in octokit-3.5.2 vs README.md in octokit-3.6.0

@@ -564,10 +564,10 @@
 Constraint][pvc] with two digits of precision. For example:
 
     spec.add_dependency 'octokit', '~> 3.0'
 
 [semver]: http://semver.org/
-[pvc]: http://docs.rubygems.org/read/chapter/16#page74
+[pvc]: http://guides.rubygems.org/patterns/#pessimistic-version-constraint
 
 ## License
 
 Copyright (c) 2009-2014 Wynn Netherland, Adam Stacoviak, Erik Michaels-Ober