Update docs

CHANGELOG.md

+## 0.4.1
+
+### Release Notes
+* Fix migration process
+
+
 ## 0.4.0
 
 ### Breaking changes
@@ -45,4 +51,4 @@ Noc Tower moved from mercurial to git.
 ### Bugfixes
 
 * Add missed checks for environmnet name. 
-* Fix Negative error counter
\ No newline at end of file
+* Fix Negative error counter