Added changelog

Author: casperbakker

CHANGELOG.md

@@ -0,0 +1,52 @@
+# Changelog
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [Unreleased]
+
+## [2.0.0] - 2020-01-11
+### Added
+- Introduced Barcode and BarcodeBar classes to standardise generator output.
+- Introduced methods to force use of GD or Imagick, see readme.
+- Loads of new tests added, including tests on Github Actions.
+
+### Changed
+- Splitted all barcode types to different files.
+- Refactored a lot of code for better readability, stricter checking, and to be more efficient.
+- Merged JPG and PNG generators, because of duplicate code.
+
+### Fixed
+- Fixed a bug in Codabar generation 2d1128f5222d9368fc6151d2b51801ea29ba1052
+- Do not draw multiple bars on the same position #74
+- Do not try to draw barcodes for empty strings #42
+- Fixed possible casting issue in Codabar #92
+
+## [0.4.0] - 2019-12-31
+### Added
+- Added support for PHP 7.4, thanks to @pilif #80
+
+## [0.3.0] - 2019-01-12
+### Added
+- SVG: Add viewBox attribute to allow svg scaling #68 by @cuchac
+- Adjust CODE_128 to handle odd number of digits #55 by @richayles
+
+### Fixed
+- Bugfix update imagick function #51 by @Keinbockwurst
+
+## [0.2.2] - 2017-09-28
+### Added
+- Raising exceptions if we cannot generate JPG or PNG because of missing libraries. Thanks @OskarStark
+
+## [0.2.1] - 2016-10-24
+### Fixed
+- Bugfixes for wrong constant values.
+
+## [0.2.0] - 2016-05-14
+### Added
+- This release adds exceptions to this package. Now it is easier to detect if the generated barcode is correct or not.
+
+## [0.1.0] - 2015-08-13
+### Added
+- Everything. First release of this package.

Readme.md

@@ -38,6 +38,8 @@ The `getBarcode()` method accepts the following parameters:
 - `$height` The total height of the barcode in pixels
 - `$foregroundColor` Hex code as string, or array of RGB, of the colors of the bars (the foreground color)
 
+Example of usage of all parameters:
+
 ```php
 <?php
 
@@ -98,8 +100,6 @@ Most used types are TYPE_CODE_128 and TYPE_CODE_39. Because of the best scanner
 ## A note about PNG and JPG images
 If you want to use PNG or JPG images, you need to install [Imagick](https://www.php.net/manual/en/intro.imagick.php) or the [GD library](https://www.php.net/manual/en/intro.image.php). This package will use Imagick if that is installed, or fall back to GD. If you have both installed but you want a specific method, you can use `$generator->useGd()` or `$generator->useImagick()` to force your preference.
 
-We use Imagick as standard because the size of the output is factor 10 smaller.
-
 ## Examples
 
 ### Embedded PNG image in HTML