Support of template for release notes in tag
<!--IssueSummary start-->
<details>
<summary>
Everyone can contribute. [Help move this issue forward](https://handbook.gitlab.com/handbook/marketing/developer-relations/contributor-success/community-contributors-workflows/#contributor-links) while earning points, leveling up and collecting rewards.
</summary>
- [Close this issue](https://contributors.gitlab.com/manage-issue?action=close&projectId=278964&issueIid=23897)
</details>
<!--IssueSummary end-->
We already support issue description and merge request description template. Our prospect https://gitlab.my.salesforce.com/0016100001BWluK would like to see template support of release notes in tag so that people can follow the same format for uniformed release notes.
@victorwu
issue