chore: update changelog

Author: Rosario Trischitta

CHANGELOG.md

@@ -22,13 +22,17 @@ Changelog
 * add information regarding a potential "NaN" value for `ratio` results to docs ([#166])
 * properly skip `GetControllerTest` class if `port1` parameter is absent ([#164])
 * update ohsome parent module, requires maven version 3.6 or higher ([#184])
+* update documentation([#88]) ([#150]) and endpoints graph ([#158])
 
 [#166]: https://github.com/GIScience/ohsome-api/issues/166
 [#136]: https://github.com/GIScience/ohsome-api/issues/136
 [#55]: https://github.com/GIScience/ohsome-api/issues/55
 [#164]: https://github.com/GIScience/ohsome-api/pull/164
 [#184]: https://github.com/GIScience/ohsome-api/pull/184
 [#191]: https://github.com/GIScience/ohsome-api/issues/191
+[#88]: https://github.com/GIScience/ohsome-api/issues/88
+[#150]: https://github.com/GIScience/ohsome-api/issues/150
+[#158]: https://github.com/GIScience/ohsome-api/issues/158
 
 ## 1.4.1