Merge pull request #626 from DelvarWorld/doc-strong-rails

Fixing typo in docs with strong typing

README.md

@@ -73,7 +73,7 @@ end
 
 class UsersController < ApplicationController
   def user_params
-    params.require(:user).permit(:name, :tag_list) ## Rails 4 strong params usage
+    params.require(:user).permit(:name, :tag_list => []) ## Rails 4 strong params usage
   end
 end