Add missing "Workshop in Your Language" section to Korean README

[Copilot]

The Korean localized README (localisation/ko-kr/README.md) was missing the "Workshop in Your Language" section that exists in the main English README. This section provides navigation links to all available language versions of the workshop.

Changes Made

• Added the "다양한 언어로 제공되는 워크샵" (Workshop in Your Language) section to the Korean README
• Positioned it correctly after the "워크샵 목표" (Workshop Objectives) section and before the "전제 조건" (Prerequisites) section
• Maintained consistency with the main English README structure
• Used appropriate Korean translation while keeping the same language navigation links

Structure Verification

Both English and Korean READMEs now have identical section structure:

1. Background (배경)
2. Workshop Objectives (워크샵 목표)
3. Workshop in Your Language (다양한 언어로 제공되는 워크샵) ✅
4. Prerequisites (전제 조건)
5. Product Requirements Document (제품 요구사항 문서)
6. Workshop Instructions (워크샵 지침)
7. Complete Samples (완성된 샘플)
8. Read More... (더 읽어보기...)

The change is minimal (6 lines added) and maintains proper localization consistency.

Fixes #22.

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[Justin Yoo (justinyoo)]

LGTM