docs: add advanced guides and changelog for release 0.0.4

Author: ATHARVA262005

.github/workflows/ci.yml

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+name: CI
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [18.x, 20.x]
+
+    steps:
+    - uses: actions/checkout@v4
+    
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v4
+      with:
+        node-version: ${{ matrix.node-version }}
+        cache: 'npm'
+        
+    - name: Install Dependencies
+      run: npm ci
+      
+    - name: Lint
+      run: npm run lint
+      
+    - name: Build
+      run: npm run build
+      
+    - name: Test
+      run: npm test

CHANGELOG.md

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+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [0.0.4] - 2024-01-26
+
+### Fixed
+- **SSR state leak**: Removed unsafe global state variables `renderedMetaTags` and `__REACT_META_TITLE_RENDERED__`.
+- **Schema Safety**: Added error boundary around `JSON.stringify` to prevent crashes from circular references in Schema data.
+- **Example App**: Fixed infinite loop in `SocialPreview` during development.
+
+### Added
+- **Validation**: New `validateSchema` helper for better dev-time warnings.
+- **Infrastructure**: Added `CONTRIBUTING.md`, `CODE_OF_CONDUCT.md`, and GitHub templates.
+
+## [0.0.3] - 2024-01-25
+
+### Fixed
+- **Social Preview**: Added `forceVisible` prop to allow usage in production/demo environments.
+
+## [0.0.2] - 2024-01-25
+
+### Fixed
+- **Infinite Loop**: Fixed critical infinite re-render loop in `SocialPreview`.
+
+## [0.0.1] - 2024-01-25
+
+### Added
+- Initial release of `react-meta-seo`.
+- Core components: `<Title>`, `<Meta>`, `<Link>`, `<Preload>`, `<Robots>`.
+- JSON-LD Support: `<Schema>` with presets for Product, Article.
+- CLI: Sitemap generator `react-meta-seo generate-sitemap`.