New achievement: První kroky

[PiechZ]

What's the achievement name? První kroky

What are the criteria for awarding this achievement? Awarded to debater/judge, who is currently having between 6,25 and 12,5 IB points.
Is this aimed at a particular audience - e.g. new debaters, experienced debaters, judges or coaches? Judge, debater

Implementation progress

• achievement named and described
• achievement criteria translated to SQL
• tests for columns added in achievements.yml
• model reference added to union_relations in final__all_achievements.sql
• achievement image generated and placed in frontend/public/achievement_backgrounds/