Leaderboard was not shown properly in docs

[JudithBernett]

leaderboard + new versions

PR Checklist for all PRs

• This comment contains a description of changes (with reason)
• Documentation in docs is updated. If you've created a new file, add it to the API documentation pages.

Changes

Bug fixes

• Leaderboard was not properly shown in docs -> now shown

New features

Maintenance

• new versions

Version release checklist

• Run ‚poetry update‘ to get the latest package versions. This will update the poetry.lock file
• Run ‚poetry export --without-hashes --without development -f requirements.txt -o requirements.txt‘ to update the requirements.txt file
• (If poetry itself was updated, update that in the Dockerfile)

[PascalIversen]

lgtm thanks!!