New release v1.31.0 - add CHANGELOG
+## moler 1.31.0
+
+### Added
+* Unix command nping
+* Unix command sysctl
+
+### Improved
+* Check cmd status before break
+* Commands and events - 100% coverage in tests
+* Run tests with flake8
+
+
+### Fixed
+* CI on GitHub Actions and resolved issues with new Python
+* Fix the possibility to break command if the command is not running
+
## moler 1.30.0
### Improved
