Add README file to GitLab project

Feature request

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Checklist

• This issue is not a duplicate, I've searched the Issue Tracker
• This issue is not a question, I'm aware that I can submit questions via Mastodon, Twitter, Email, Reddit or Matrix
• This issue is a feature request, and not a bug report, content request, or anything other

What are you missing or what could be improved?

Short project description for GitLab page would be nice.

What is the solution you'd like to see?

Add README file in root directory.

Do you have additional comments?

N/A