[Proposal] Add CHANGELOG.md header expection

[yordis]

[short title of solved problem and solution]

• State: Draft
• Created:
• Tags:

Context

Improve CHANGELOG.md maintains

Resolution

• You MUST include the following at the top of the CHANGELOG.md file

All notable changes to this project will be documented in this file.

The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

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