chore: add contribution docs and committer docs

[borisrizov-zf]

Description

The tool semantic-release has its own workflow, which is not well documented in this repo. This PR will add documentation for new developers and committers alike, which will aid them when creating/reviewing new PRs.

Closes #199

Pre-review checks

Please ensure to do as many of the following checks as possible, before asking for committer review:

• [x] DEPENDENCIES are up-to-date. Dash license tool. Committers can open IP issues for restricted libs.
• [x] Copyright and license header are present on all affected files

[github-actions[bot]]

:tada: This issue has been resolved in version 0.5.0 :tada:

The release is available on GitHub release

Your semantic-release bot :package::rocket: