Changelog cleanup

Changelog.md

@@ -1,4 +1,6 @@
-Version 2.0.2 (2013-03-17)
+# Changelog
+
+## Version 2.0.2 (2013-03-17)
 
 - Changed database schema to allow NULL for column `value` to fix serialization
   bug with MySQL. Thanks to @steventen for pointing this out in issue #31.
@@ -7,7 +9,6 @@ Version 2.0.2 (2013-03-17)
              you use MySQL it's required to update your database schema like
              this:
 
-             ```ruby
              class FixSettings < ActiveRecord::Migration
                def up
                  change_column :settings, :value, :text, :null => true
@@ -17,15 +18,14 @@ Version 2.0.2 (2013-03-17)
                  change_column :settings, :value, :text, :null => false
                end
              end
-             ```
 
 
-Version 2.0.1 (2013-03-08)
+## Version 2.0.1 (2013-03-08)
 
 - Added mass assignment security by protecting all regular attributes
 
 
-Version 2.0.0 (2013-03-07)
+## Version 2.0.0 (2013-03-07)
 
 - Complete rewrite
 - New DSL (see README.md)
@@ -36,29 +36,29 @@ Version 2.0.0 (2013-03-07)
 - Switched to RSpec for testing
 
 
-Version 1.2.1 (2013-02-09)
+## Version 1.2.1 (2013-02-09)
 
 - Quick and dirty fix for design flaw in target scope implementation (thanks to Yves-Eric Martin)
 - Use Thread.current instead of cattr_accessor to be threadsafe
 - Code cleanup
 
 
-Version 1.2.0 (2012-07-21)
+## Version 1.2.0 (2012-07-21)
 
 - Added model-level settings (thanks to Jim Ryan)
 
 
-Version 1.1.0 (2012-06-01)
+## Version 1.1.0 (2012-06-01)
 
 - Added caching (thanks to Matthew McEachen)
 
 
-Version 1.0.1 (2011-11-05)
+## Version 1.0.1 (2011-11-05)
 
 - Gemspec: Fixed missing dependency
 
 
-Version 1.0.0 (2011-11-05)
+## Version 1.0.0 (2011-11-05)
 
 - Conversion from Plugin to Gem
 - Destroying false values (thanks to @Pavling)