changelog update

CHANGELOG.md

 # Changelog
 All notable changes to this project will be documented in this file.
 
+## [next]
+
+### Added
 
+* tutorial commands and folders
+* clean.sh a script to remove intermediate files, log files and final results files
 
-## [next]
+### Changed
+
+* main.sh launches whole workflow
+* fix tutorial commands
+
+
+## [1.1.2] - 21st july 2020
 
 ### Added