mmsyn7h-0.2.1.0: ChangeLog.md

# Revision history for mmsyn7h

## 0.1.0.0 -- 2019-12-24

* First version. Released on an unsuspecting world.

## 0.2.0.0 -- 2019-12-25

* Second version. Changed the behaviour of the program.

## 0.2.1.0 -- 2019-12-25

* Second version revised A. Program now is a library and a executable, it has another module structure. Some minor documentation improvements.