Gemfile in PageRankr-4.4.1 vs Gemfile in PageRankr-4.6.0

@@ -1,8 +1,7 @@
 source 'https://rubygems.org'
 
 gemspec
 
 group :development do
-  gem 'pry'
-  gem 'pry-nav'
+  gem 'pry-byebug'
 end