add index.md

Author: chuci4ever

docs/index.md

@@ -0,0 +1,23 @@
+# Analytics Tracking Automation
+
+Official docs home for the JTracking AI skill.
+
+This project helps teams plan, generate, and verify GA4 + GTM tracking with an agent-assisted workflow.
+
+## Quick Links
+
+- [Installation Guide](./README.install.md)
+- [Skill Family Overview](./skills.md)
+- [GitHub Repository](https://github.com/jtrackingai/analytics-tracking-automation)
+- [JTracking Website](https://www.jtracking.ai/skills)
+
+## What This Skill Helps With
+
+- Site analysis and page grouping
+- GA4 event schema planning
+- GTM-ready output generation
+- Preview and verification guidance
+
+## Start Here
+
+If you are new, begin with the [Installation Guide](./README.install.md), then follow the workflow in your preferred AI coding tool.