Add changelog based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)

Author: d8vjork

CHANGELOG.md

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+# 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]
+
+## [1.1.0] - 2019-08-16
+
+### Added
+
+- Second parameter on **JsonApiCollection** for force authorization on resource list
+- Use of the _snake_case_ 🐍 for object types (see [member names](https://jsonapi.org/format/#document-member-names))
+- Changelog following [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
+
+### Removed
+
+- Temporary use of PSR-12 on some classes (we'll still use PSR-2 and all the approved ones)
+
+### Fixed
+
+- Multiple bugs on the pagination when resources are not authorised and it still show old count of items
+- When _included_ show empty on **JsonApiCollection**
+
+## [1.0.2] - 2019-07-30
+
+### Fixed
+
+- Prevent pivot relationships to be included
+
+## [1.0.1] - 2019-07-30
+
+### Fixed
+
+- The whole package functionality
+
+## [1.0.0] - 2019-07-29
+
+### Added
+
+- Initial commit of the package
+- Package published on Packagist (composer)