Update changelog

CHANGELOG.md

+
+<a name="v0.2.0"></a>
+## v0.2.0 - 2022-12-27
+### Add Features
+- add a function to keep parts of a structure.
+- implement cut, sync and template
+
+### Changes
+- complete documentation
+- update libs
+- update makefiles
+- project sturcture
+
+