Add GitHub compare links to CHANGELOG.md

CHANGELOG.md

@@ -1,4 +1,4 @@
-### 1.0.0-alpha10 (2015-04-14)
+### [1.0.0-alpha10] (2015-04-14)
 
   * Break: The following event classes are deprecated and you should update your script handlers to use the new ones in type hints:
     - `Composer\Script\CommandEvent` is deprecated, use `Composer\Script\Event`
@@ -22,7 +22,7 @@
   * Fixed the autoloader suffix in vendor/autoload.php changing in every build
   * Many minor fixes, documentation additions and UX improvements
 
-### 1.0.0-alpha9 (2014-12-07)
+### [1.0.0-alpha9] (2014-12-07)
 
   * Added `remove` command to do the reverse of `require`
   * Added --ignore-platform-reqs to `install`/`update` commands to install even if you are missing a php extension or have an invalid php version
@@ -52,7 +52,7 @@
   * Improved SVN and Perforce support
   * A boatload of minor fixes, documentation additions and UX improvements
 
-### 1.0.0-alpha8 (2014-01-06)
+### [1.0.0-alpha8] (2014-01-06)
 
   * Break: The `install` command now has --dev enabled by default. --no-dev can be used to install without dev requirements
   * Added `composer-plugin` package type to allow extensibility, and deprecated `composer-installer`
@@ -83,7 +83,7 @@
   * Improved memory usage and performance of solving dependencies
   * Tons of minor bug fixes and improvements
 
-### 1.0.0-alpha7 (2013-05-04)
+### [1.0.0-alpha7] (2013-05-04)
 
   * Break: For forward compatibility, you should change your deployment scripts to run `composer install --no-dev`. The install command will install dev dependencies by default starting in the next release
   * Break: The `update` command now has --dev enabled by default. --no-dev can be used to update without dev requirements, but it will create an incomplete lock file and is discouraged
@@ -134,7 +134,7 @@
   * Improved the coverage of the `validate` command
   * Tons of minor bug fixes and improvements
 
-### 1.0.0-alpha6 (2012-10-23)
+### [1.0.0-alpha6] (2012-10-23)
 
   * Schema: Added ability to pass additional options to repositories (i.e. ssh keys/client certificates to secure private repos)
   * Schema: Added a new `~` operator that should be preferred over `>=`, see http://getcomposer.org/doc/01-basic-usage.md#package-versions
@@ -159,7 +159,7 @@
   * Improved performance of a few essential code paths
   * Many bug small fixes and docs improvements
 
-### 1.0.0-alpha5 (2012-08-18)
+### [1.0.0-alpha5] (2012-08-18)
 
   * Added `dump-autoload` command to only regenerate the autoloader
   * Added --optimize to `dump-autoload` to generate a more performant classmap-based autoloader for production
@@ -177,7 +177,7 @@
   * Improved error reporting on network failures and some other edge cases
   * Various minor bug fixes and docs improvements
 
-### 1.0.0-alpha4 (2012-07-04)
+### [1.0.0-alpha4] (2012-07-04)
 
   * Break: The default `minimum-stability` is now `stable`, [read more](https://groups.google.com/d/topic/composer-dev/_g3ASeIFlrc/discussion)
   * Break: Custom installers now receive the IO instance and a Composer instance in their constructor
@@ -205,7 +205,7 @@
   * Cleaned up / refactored the dependency solver code as well as the output for unsolvable requirements
   * Various bug fixes and docs improvements
 
-### 1.0.0-alpha3 (2012-05-13)
+### [1.0.0-alpha3] (2012-05-13)
 
   * Schema: Added `require-dev` for development-time requirements (tests, etc), install with --dev
   * Schema: Added author.role to list the author's role in the project
@@ -227,7 +227,7 @@
   * Fixed various bugs relating to package aliasing, proxy configuration, binaries
   * Various bug fixes and docs improvements
 
-### 1.0.0-alpha2 (2012-04-03)
+### [1.0.0-alpha2] (2012-04-03)
 
   * Added `create-project` command to install a project from scratch with composer
   * Added automated `classmap` autoloading support for non-PSR-0 compliant projects
@@ -245,3 +245,13 @@
 ### 1.0.0-alpha1 (2012-03-01)
 
   * Initial release
+
+[1.0.0-alpha10]: https://github.com/composer/composer/compare/1.0.0-alpha9...1.0.0-alpha10
+[1.0.0-alpha9]: https://github.com/composer/composer/compare/1.0.0-alpha8...1.0.0-alpha9
+[1.0.0-alpha8]: https://github.com/composer/composer/compare/1.0.0-alpha7...1.0.0-alpha8
+[1.0.0-alpha7]: https://github.com/composer/composer/compare/1.0.0-alpha6...1.0.0-alpha7
+[1.0.0-alpha6]: https://github.com/composer/composer/compare/1.0.0-alpha5...1.0.0-alpha6
+[1.0.0-alpha5]: https://github.com/composer/composer/compare/1.0.0-alpha4...1.0.0-alpha5
+[1.0.0-alpha4]: https://github.com/composer/composer/compare/1.0.0-alpha3...1.0.0-alpha4
+[1.0.0-alpha3]: https://github.com/composer/composer/compare/1.0.0-alpha2...1.0.0-alpha3
+[1.0.0-alpha2]: https://github.com/composer/composer/compare/1.0.0-alpha1...1.0.0-alpha2