Improve documentation structure

Author: nyamsprod

README.md

@@ -36,11 +36,8 @@ composer require bakame/http-structured-fields
 
 ## Documentation
 
-> [!WARNING]
-> The documentation for v2 is still not fully finished. Please refers to [version 1.x](https://github.com/bakame-php/http-structured-fields/tree/1.x)
-> for the most recent and stable documentation.
-
-The documentation for v2 is a [work in progress you can read here](/docs/00-intro.md)
+- The documentation for [version 2.x](/docs/00-intro.md) is a **work in progress**
+- The documentation for [version 1.x](https://github.com/bakame-php/http-structured-fields/tree/1.x) for the current stable version.
 
 ## Contributing
 

docs/00-intro.md

@@ -1,3 +1,8 @@
+---
+title: Introduction
+order: 1
+---
+
 # Introduction
 
 `bakame/http-structured-fields` is a framework-agnostic PHP library that allows you to parse, serialize, 

docs/01-basic-usage.md

@@ -1,3 +1,8 @@
+---
+title: Basic usage
+order: 2
+---
+
 # Basic Usage
 
 ## Parsing the Field

docs/02-parsing-serializing.md

@@ -1,3 +1,8 @@
+---
+title: Parsing and Serializing HTTP Fields
+order: 3
+---
+
 # Parsing and Serializing HTTP Fields
 
 ## Parsing fields

docs/03-value-types.md

@@ -1,3 +1,8 @@
+---
+title: HTTP Fields value types
+order: 4
+---
+
 # Structured Fields Values
 
 ## Value type conversion to PHP

docs/04-item.md

@@ -1,3 +1,8 @@
+---
+title: The Structured Field Item Data Type
+order: 5
+---
+
 # The Item Data Type
 
 This is the structure from which you will be able to access the actual field content.

docs/05-containers.md

@@ -1,3 +1,8 @@
+---
+title: The Structured Field containers Data Types
+order: 6
+---
+
 # Containers
 
 While building or updating a Bare Item is straightforward, doing the same with the structured field

docs/06-validation.md

@@ -1,3 +1,8 @@
+---
+title: Structured Field validation
+order: 7
+---
+
 # Validation
 
 When it comes to make sure about the incoming data the package provides a simple approach around validation,

docs/07-extensions.md

@@ -1,3 +1,8 @@
+---
+title: Interacting with PHP ecosystem
+order: 8
+---
+
 # Interacting with PHP ecosystem
 
 All Datatypes expose the `Stringable` interface while it is recommended to use