Add change log entry

Former-commit-id: 2c5d354d138bfe8e691695881dc3e68dd706f3b0

readme.md

@@ -11,6 +11,7 @@
 - [System configuration](#system-configuration)
 - [Security](#security)
 - [Contributions](#contributions)
+- [Change log](#change-log)
 - [Legal](#legal)
 
 <!-- /TOC -->
@@ -131,6 +132,10 @@ Please foresee from submitting issues in the following cases:
 
 _- Thank you_
 
+## Change log
+
+- `20200315`: Initial release
+
 ## Legal
 
 This project's configuration files and installation scripts are licensed under the [**Apache License, Version 2**](http://www.apache.org/licenses/LICENSE-2.0).