**feat(demo): add GitHub Pages demo script and update deployment workflow**

### Changes:
- **`demo/simplified-augmentations-gh-pages.js`**:
  - Added a new demo script showcasing simplified augmentations for GitHub Pages.
  - Includes examples for static and streaming data processing, WebSocket support, and dynamic augmentation loading.

- **`README.md`**:
  - Updated the demo link to point directly to `https://soulcraft-research.github.io/brainy/`.

- **`.github/workflows/deploy-demo.yml`**:
  - Enhanced the deployment workflow to include the `simplified-augmentations-gh-pages.js` file as the GitHub Pages demo entry point.
  - Added steps to copy and prepare required `dist` files during the build process.

- **`demo/index.html`**:
  - Dynamically adjusted the import path for the Brainy library to support both local and CDN environments.
  - Reformatted code for readability and alignment with deployment needs.

### Purpose:
Introduced a tailored demonstration script for GitHub Pages to highlight Brainy's streamlined augmentation features. Enhanced the deployment pipeline for better integration and seamless live demo experience.

.github/workflows/deploy-demo.yml

@@ -27,6 +27,13 @@ jobs:
         run: |
           npm run build
           npm run build:browser
+          mkdir -p demo/dist
+          cp dist/unified.js demo/dist/
+          cp dist/unified.min.js demo/dist/
+          cp dist/brainy.js demo/dist/
+          cp dist/brainy.min.js demo/dist/
+          # Use the GitHub Pages specific version of simplified-augmentations.js
+          cp demo/simplified-augmentations-gh-pages.js demo/simplified-augmentations.js
 
       - name: Deploy to GitHub Pages 🚀
         uses: JamesIves/github-pages-deploy-action@v4