Prepare for 0.0.1 release

- Update README.md with version-specific installation instructions
- Add comprehensive Documentation.docc content describing package capabilities
- Ready for initial public release

Author: coenttb

README.md

@@ -34,15 +34,15 @@ Add the dependency in your `Package.swift` file:
 
 ```swift
 dependencies: [
-    .package(url: "https://github.com/coenttb/swift-css-types", branch: "main")
+    .package(url: "https://github.com/coenttb/swift-css-types", from: "0.0.1")
 ]
 ```
 
 ### Xcode
 
 1. Select File > Add Packages...
 2. Enter package URL: `https://github.com/coenttb/swift-css-types`
-3. Choose the main branch or a specific version
+3. Select version 0.0.1 or "Up to Next Major Version"
 
 ## Related Projects
 

Sources/CSSTypes/Documentation.docc/Documentation.md

@@ -1,14 +1,28 @@
 # ``CSS``
 
-Hello Test
-
+A Swift package that provides a strongly-typed domain model of CSS properties and values.
 
 ## Overview
 
-<!--@START_MENU_TOKEN@-->Text<!--@END_MENU_TOKEN@-->
+The CSS Types package provides type-safe representations of CSS properties, values, and at-rules, enabling compile-time validation of CSS code in Swift applications. This package serves as a foundation for building CSS DSLs and tools that work with CSS in a type-safe manner.
+
+### Key Features
+
+- **Type-safe CSS properties**: All CSS properties represented as Swift types with appropriate value constraints
+- **Comprehensive CSS value types**: Support for colors, lengths, percentages, and other CSS value types  
+- **At-rule support**: Media queries, layers, containers, and other CSS at-rules
+- **Extensible design**: Designed to serve as a foundation for higher-level CSS tools and DSLs
 
 ## Topics
 
-### Hello
+### CSS Properties
+
+CSS properties like `BackgroundColor`, `FontSize`, and `Margin` provide type-safe ways to work with CSS styling.
+
+### CSS Types
+
+Fundamental CSS value types including `Color`, `Length`, `Percentage`, and composite types like `LengthPercentage`.
+
+### At-Rules
 
-- <!--@START_MENU_TOKEN@-->``Symbol``<!--@END_MENU_TOKEN@-->
+CSS at-rules including `Media` queries, `Layer` declarations, and `Container` queries for advanced CSS features.