docs: add dedicated docs website

docs/index.md

@@ -0,0 +1,51 @@
+---
+layout: home
+
+hero:
+  name: TOON
+  text: Token-Oriented Object Notation
+  tagline: A compact, human-readable encoding of the JSON data model for LLM prompts.
+  image:
+    dark: /logo-nav-dark.svg
+    light: /logo-nav-light.svg
+    alt: TOON Logo
+  actions:
+    - theme: brand
+      text: Get Started
+      link: /guide/getting-started
+    - theme: alt
+      text: Format Overview
+      link: /guide/format-overview
+    - theme: alt
+      text: CLI
+      link: /cli/
+    - theme: alt
+      text: Spec v2.0
+      link: /reference/spec
+
+features:
+  - title: Token-Efficient & Accurate
+    icon: 📊
+    details: TOON reaches 74% accuracy (vs JSON's 70%) while using ~40% fewer tokens in mixed-structure benchmarks across 4 models.
+    link: /guide/benchmarks
+  - title: JSON Data Model
+    icon: 🔁
+    details: Encodes the same objects, arrays, and primitives as JSON with deterministic, lossless round-trips.
+    link: /guide/format-overview
+  - title: LLM-Friendly Guardrails
+    icon: 🛤️
+    details: Explicit [N] lengths and {fields} headers give models a clear schema to follow, improving parsing reliability.
+    link: /guide/format-overview#arrays
+  - title: Minimal Syntax
+    icon: 📐
+    details: Uses indentation instead of braces and minimizes quoting, giving YAML-like readability with CSV-style compactness.
+    link: /guide/format-overview#arrays
+  - title: Tabular Arrays
+    icon: 🧺
+    details: Uniform arrays of objects collapse into tables that declare fields once and stream row values line by line.
+    link: /guide/format-overview#arrays
+  - title: Multi-Language Ecosystem
+    icon: 🌐
+    details: Spec-driven implementations in TypeScript, Python, Go, Rust, .NET, and other languages.
+    link: /ecosystem/implementations
+---