README.md in sidekiq-limit_fetch-1.7 vs README.md in sidekiq-limit_fetch-2.0

@@ -12,9 +12,13 @@
 
 Add this line to your application's Gemfile:
 
     gem 'sidekiq-limit_fetch'
 
+### Requirements
+
+redis 2.6 or newer
+
 ## Usage
 
 ### Limits
 
 Specify limits which you want to place on queues inside sidekiq.yml: