Merge pull request #46 from Ray0907/fix/reference-files-add-toc

Follows Anthropic's best practices — TOC on reference files over 100 lines.

skills/seo-audit/references/aeo-geo-patterns.md

@@ -4,6 +4,12 @@ Reusable content block patterns optimized for answer engines and AI citation.
 
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+## Contents
+- Answer Engine Optimization (AEO) Patterns (Definition Block, Step-by-Step Block, Comparison Table Block, Pros and Cons Block, FAQ Block, Listicle Block)
+- Generative Engine Optimization (GEO) Patterns (Statistic Citation Block, Expert Quote Block, Authoritative Claim Block, Self-Contained Answer Block, Evidence Sandwich Block)
+- Domain-Specific GEO Tactics (Technology Content, Health/Medical Content, Financial Content, Legal Content, Business/Marketing Content)
+- Voice Search Optimization (Question Formats for Voice, Voice-Optimized Answer Structure)
+
 ## Answer Engine Optimization (AEO) Patterns
 
 These patterns help content appear in featured snippets, AI Overviews, voice search results, and answer boxes.

skills/seo-audit/references/ai-writing-detection.md

@@ -6,6 +6,16 @@ Sources: Grammarly (2025), Microsoft 365 Life Hacks (2025), GPTHuman (2025), Wal
 
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+## Contents
+- Em Dashes: The Primary AI Tell
+- Overused Verbs
+- Overused Adjectives
+- Overused Transitions and Connectors
+- Phrases That Signal AI Writing (Opening Phrases, Transitional Phrases, Concluding Phrases, Structural Patterns)
+- Filler Words and Empty Intensifiers
+- Academic-Specific AI Tells
+- How to Self-Check
+
 ## Em Dashes: The Primary AI Tell
 
 **The em dash (—) has become one of the most reliable markers of AI-generated content.**