Query guide: fix indentation

railties/guides/source/active_record_querying.textile

@@ -728,39 +728,39 @@ Scoping allows you to specify commonly-used ARel queries which can be referenced
 To define a simple scope, we use the +scope+ method inside the class, passing the ARel query that we'd like run when this scope is called:
 
 <ruby>
-  class Post < ActiveRecord::Base
-    scope :published, where(:published => true)
-  end
+class Post < ActiveRecord::Base
+  scope :published, where(:published => true)
+end
 </ruby>
 
 Just like before, these methods are also chainable:
 
 <ruby>
-  class Post < ActiveRecord::Base
-    scope :published, where(:published => true).joins(:category)
-  end
+class Post < ActiveRecord::Base
+  scope :published, where(:published => true).joins(:category)
+end
 </ruby>
 
 Scopes are also chainable within scopes:
 
 <ruby>
-  class Post < ActiveRecord::Base
-    scope :published, where(:published => true)
-    scope :published_and_commented, published.and(self.arel_table[:comments_count].gt(0))
-  end
+class Post < ActiveRecord::Base
+  scope :published, where(:published => true)
+  scope :published_and_commented, published.and(self.arel_table[:comments_count].gt(0))
+end
 </ruby>
 
 To call this +published+ scope we can call it on either the class:
 
 <ruby>
-  Post.published => [published posts]
+Post.published => [published posts]
 </ruby>
 
 Or on an association consisting of +Post+ objects:
 
 <ruby>
-  category = Category.first
-  category.posts.published => [published posts belonging to this category]
+category = Category.first
+category.posts.published => [published posts belonging to this category]
 </ruby>
 
 h4. Working with times