Merge pull request #136 from nik736/patch-1

changed hash to usr

Author: anykeyh

manual/querying/the-collection-object/filter-the-query-1/ordering.md

@@ -3,7 +3,7 @@
 Ordering of the collection can be made by using `order_by` method, while Group by is done via `group_by` :
 
 ```ruby
-User.query.order_by(last_name: "ASC", first_name: "ASC").each do |hash|
+User.query.order_by(last_name: "ASC", first_name: "ASC").each do |usr|
     puts "#{usr.first_name} #{usr.last_name}"
 end
 ```