refactor: Renumber skills 00→10, 01→11 for consistent numbering

- Rename 00-ourdigital-visual-storytelling to 10-ourdigital-visual-storytelling
- Rename 01-ourdigital-research-publisher to 11-ourdigital-research-publisher
- Update CLAUDE.md with new skill numbering and add skill 12 (seo-audit)
- Skill count updated from 8 to 9

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

ourdigital-custom-skills/11-ourdigital-research-publisher/references/blog-style-guide.md

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+# OurDigital Blog Style Guide
+
+## Channel-Specific Voice & Tone
+
+### blog.ourdigital.org (Korean)
+**Voice**: 전문적이면서 친근한 선배 마케터
+**Tone**: 실용적, 데이터 기반, 인사이트 중심
+
+Writing patterns:
+- 제목: 핵심 키워드 포함, 30자 이내
+- 도입부: 독자의 고민/질문으로 시작
+- 본문: 번호 매기기보다 소제목 활용
+- 전문용어: 한글(영문) 형식 - 예: 검색엔진최적화(SEO)
+- 문장: ~입니다/~습니다 경어체
+- 단락: 3-4문장, 모바일 가독성 고려
+
+Example opening:
+```
+"구글 상위 노출, 왜 이렇게 어려울까요? 
+많은 마케터들이 SEO에 시간을 투자하지만 
+결과가 보이지 않아 좌절합니다. 
+오늘은 실제로 효과를 본 전략 3가지를 공유합니다."
+```
+
+### journal.ourdigital.org (English)
+**Voice**: Thoughtful industry analyst
+**Tone**: Insightful, evidence-based, forward-looking
+
+Writing patterns:
+- Headlines: Clear value proposition, under 60 chars
+- Opening: Hook with industry trend or data point
+- Body: Structured arguments with supporting evidence
+- Terminology: Define jargon on first use
+- Style: Active voice, varied sentence length
+- Paragraphs: 2-4 sentences for scannability
+
+Example opening:
+```
+"The digital marketing landscape shifted dramatically in 2024. 
+With AI reshaping search behavior, traditional SEO metrics 
+no longer tell the full story. Here's what the data reveals—
+and what it means for your strategy."
+```
+
+### ourstory.day (Korean)
+**Voice**: 성찰하는 동료, 이야기꾼
+**Tone**: 개인적, 진솔한, 영감을 주는
+
+Writing patterns:
+- 제목: 감성적, 질문형 또는 은유적
+- 도입부: 개인 경험이나 장면 묘사로 시작
+- 본문: 이야기 흐름, 대화체 허용
+- 문장: ~해요/~네요 부드러운 경어체 가능
+- 단락: 자유로운 길이, 호흡에 따라
+- 마무리: 열린 질문 또는 여운
+
+Example opening:
+```
+"새벽 5시, 아이를 깨우지 않으려 살금살금 책상에 앉았다.
+화면에는 어제 작성한 리포트가 그대로 남아있었다.
+'이게 정말 내가 하고 싶은 일인가?' 
+문득 그런 생각이 스쳤다."
+```
+
+### Medium (English)
+**Voice**: Knowledgeable peer sharing discoveries
+**Tone**: Conversational, practical, slightly informal
+
+Writing patterns:
+- Headlines: Curiosity-driven, specific numbers work well
+- Opening: Personal anecdote or surprising fact
+- Body: Mix of storytelling and practical advice
+- Style: First person allowed, contractions okay
+- Subheadings: Every 300-400 words
+- Closing: Clear takeaway or call-to-action
+
+Example opening:
+```
+"I've spent 15 years in digital marketing, and nothing 
+prepared me for what happened when AI entered the chat.
+Last month, I ran an experiment that changed how I think 
+about content strategy entirely. Let me walk you through it."
+```
+
+## Universal Guidelines
+
+### SEO Considerations
+- Primary keyword in title and first 100 words
+- Secondary keywords naturally distributed
+- Meta description: 150-160 chars, action-oriented
+- URL slug: Short, keyword-rich, no dates
+- Alt text for all images
+
+### Formatting Rules
+- Use `##` for main sections, `###` for subsections
+- Code blocks with language specification
+- Blockquotes for key insights or quotes
+- Bold for emphasis (sparingly)
+- Lists only when truly listing items
+
+### Citation Style
+- Inline links preferred over footnotes
+- Source attribution: "According to [Source Name](URL)..."
+- Data citations: Include date of data
+- Internal links: Reference related OurDigital posts
+
+## Word Count Guidelines
+
+| Channel | Target | Min | Max |
+|---------|--------|-----|-----|
+| blog.ourdigital.org | 1,500 | 1,000 | 2,500 |
+| journal.ourdigital.org | 1,800 | 1,200 | 3,000 |
+| ourstory.day | 1,000 | 500 | 2,000 |
+| Medium | 1,500 | 800 | 2,500 |