Add GitHub Pages site with blog, tutorials, and AI chatbot demo

docs/README.md

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+# Nushell GitHub Pages Site
+
+This directory contains the GitHub Pages website for the Nushell project.
+
+## 🌐 Live Site
+
+Once deployed, the site will be available at: `https://wsx7524999.github.io/nushell/`
+
+## 📁 Structure
+
+- **`index.html`** - Homepage with features overview
+- **`blog/`** - Blog section with posts about Nushell and AI integration
+- **`tutorials/`** - Step-by-step tutorials from beginner to advanced
+- **`chatbot/`** - Interactive AI chatbot demonstration
+- **`assets/`** - CSS, JavaScript, and images
+- **`_config.yml`** - Jekyll configuration for GitHub Pages
+
+## 🚀 Deployment
+
+To enable GitHub Pages for this site:
+
+1. Go to repository **Settings** → **Pages**
+2. Set **Source** to "Deploy from a branch"
+3. Select branch and folder: `main` (or your branch) → `/docs`
+4. Click **Save**
+
+GitHub will automatically build and deploy the site.
+
+## 🛠️ Local Development
+
+To test the site locally:
+
+```bash
+# Navigate to the docs directory
+cd docs
+
+# Start a simple HTTP server
+python3 -m http.server 8080
+
+# Open http://localhost:8080 in your browser
+```
+
+## 📝 Content
+
+### Blog Posts
+1. **Integrating ChatGPT with Nushell** - About AI integration benefits
+2. **The Power of Structured Data** - How Nushell handles structured data
+3. **Building a True Cross-Platform Shell** - Cross-platform development journey
+
+### Tutorials
+1. **Getting Started with Nushell** (Beginner, 15 min) - Installation and basics
+2. **Mastering Data Pipelines** (Intermediate, 25 min) - Advanced data manipulation
+3. **Setting Up AI Integration** (Intermediate, 20 min) - ChatGPT setup guide
+
+### Chatbot
+Interactive demo with simulated AI responses. For real ChatGPT integration, follow the setup tutorial.
+
+## 🎨 Customization
+
+### Colors
+Edit `assets/css/main.css` to change the color scheme. Main colors are defined in CSS variables:
+
+```css
+:root {
+    --primary-color: #667eea;
+    --secondary-color: #764ba2;
+    --accent-color: #f093fb;
+}
+```
+
+### Navigation
+Edit the navigation menu in each HTML file or update `_config.yml` for site-wide changes.
+
+### Content
+- Blog posts: Edit HTML files in `blog/`
+- Tutorials: Edit HTML files in `tutorials/`
+- Chatbot responses: Edit `chatbot/chatbot.js`
+
+## 📱 Responsive Design
+
+The site is fully responsive with breakpoints at:
+- **Mobile**: < 768px (hamburger menu)
+- **Tablet**: 768px - 1024px
+- **Desktop**: > 1024px
+
+## 🔧 Technologies
+
+- **HTML5** - Semantic markup
+- **CSS3** - Modern styling with flexbox and grid
+- **JavaScript (ES6)** - Interactive features
+- **Jekyll** - Static site generation (via GitHub Pages)
+
+## 📄 License
+
+This site content is part of the Nushell project and follows the same MIT license.

docs/_config.yml

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+# Site settings
+title: Nushell - A Modern Shell with AI Integration
+description: >-
+  A new type of shell with powerful AI capabilities. Explore our blog, tutorials,
+  and interactive chatbot to experience the future of command-line interfaces.
+baseurl: "" # the subpath of your site, e.g. /blog
+url: "https://wsx7524999.github.io/nushell" # the base hostname & protocol for your site
+
+# Build settings
+markdown: kramdown
+theme: minima
+
+# Navigation
+navigation:
+  - title: Home
+    url: /
+  - title: Blog
+    url: /blog/
+  - title: Tutorials
+    url: /tutorials/
+  - title: Live Chatbot
+    url: /chatbot/
+  - title: GitHub
+    url: https://github.com/wsx7524999/nushell
+
+# Social links
+github_username: wsx7524999
+discord_url: https://discord.gg/NtAbbGn
+
+# Exclude from processing
+exclude:
+  - Gemfile
+  - Gemfile.lock
+  - node_modules
+  - vendor/bundle/
+  - vendor/cache/
+  - vendor/gems/
+  - vendor/ruby/