Fixed changelog for missing 1.5.1

CHANGELOG.md

@@ -1,10 +1,14 @@
 # Changelog
 
-### [1.5.1] - 2019-03-06
+### [1.5.2] - 2019-03-06
 
 Now dependent on czim/laravel-dataobject 2.0+.
 Requires PHP 7.1.3+.
 
+### [1.5.1] - 2019-03-02
+
+Removed deprecated use of Laravel array and string helper functions.
+
 ### [1.5.0] - 2019-03-02
 
 Laravel 5.7 support.
@@ -15,6 +19,7 @@ Added configurable validation rules for the query string for a request.
 This prevents incorrect filter, include, sort and pagination parameters.
 Adds the `jsonapi.request.validaton` configuration section. 
 
+[1.5.2]: https://github.com/czim/laravel-jsonapi/compare/1.5.1...1.5.2
 [1.5.1]: https://github.com/czim/laravel-jsonapi/compare/1.5.0...1.5.1
 [1.5.0]: https://github.com/czim/laravel-jsonapi/compare/1.4.16...1.5.0