Prepare for release v5.3.6 (#1658)

CHANGELOG.md

@@ -1,17 +1,25 @@
-# Change Log
-All notable changes to this project will be documented in this file based on the [Keep a Changelog](http://keepachangelog.com/) Standard.
-This project adheres to [Semantic Versioning](http://semver.org/).
+# Changelog
+All notable changes to this project will be documented in this file.
 
-## [Unreleased](https://github.com/ruflin/Elastica/compare/5.3.5...master)
+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).
 
-### Backward Compatibility Breaks
+## [Unreleased](https://github.com/ruflin/Elastica/compare/5.3.6...5.x)
+
+### Added
+### Changed
+### Deprecated
+### Removed
+### Fixed
+### Security
+
+
+## [5.3.6](https://github.com/ruflin/Elastica/compare/5.3.5...5.3.6)
 
 ### Bugfixes
 
 - Corrected Histogram aggregations to allow for string interval [#1655](https://github.com/ruflin/Elastica/pull/1655)
 
-### Added
-
 ### Improvements
 
 - Update `elasticsearch-php` dependency to 5.4 [#1648](https://github.com/ruflin/Elastica/pull/1648)