Update Russian translation (lang/russian.md)

[VorozhbitDM]

Sync Russian translation with the current English README:

• Galaxy Brain: Community Discussions no longer count (since 2024)
• YOLO: fix description (without code review, not "without comments")
• Quickdraw: close issue/PR within 5 minutes
• Pair Extraordinaire: co-authored merged PRs
• Add GitHub Star to Highlights section
• Mark experimental badges as currently unobtainable
  I'd like to submit a PR for this.