[Docs] Change the CHANGELOG

[adamma1024]

Context

Change the CHANGELOG for iteration2

Changes

Please list your changes here. For example:

• Add new tests

Screenshot (if applicated)

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes