update CHANGLOG

Author: d-biehl

CHANGELOG.md

@@ -4,8 +4,6 @@ All notable changes to the "robotcode" extension will be documented in this file
 
 ## [Unreleased]
 
-##  0.5.2
-
 ### added
 
 - Resolving static variables, closes [#18](https://github.com/d-biehl/robotcode/issues/18)
@@ -28,6 +26,10 @@ All notable changes to the "robotcode" extension will be documented in this file
 - correct handling of variable assignment with an "equal" sign
 - add more regression tests
 
+##  0.5.2
+
+- some testing
+
 ##  0.5.1
 
 ### added