Initial project setup

.gitignore

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+# macOS
+.DS_Store
+
+# Dependency directories
+node_modules/

README.md

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+# Azure DevOps PR Syntax Highlighter
+
+A browser extension that brings syntax highlighting to file diffs in Azure DevOps pull requests, making code reviews easier and more efficient.
+
+## Features
+
+- **Syntax Highlighting:** Automatically applies syntax highlighting to code in pull request diffs.
+- **Language Detection:** Detects the programming language based on file extensions.
+- **Theme Support:** Seamlessly integrates with both light and dark themes in Azure DevOps.
+- **Powered by Prism:** Utilizes the popular [Prism](https://prismjs.com/) library for fast and accurate highlighting.
+
+## Screenshots
+
+### Before & After
+
+![Before and After](assets/screenshots/before-after-1280-800.png)
+
+### Side-by-side Diff
+
+![Side-by-side Diff](assets/screenshots/side-by-side-1280-800.png)
+
+### Inline Diff
+
+![Inline Diff](assets/screenshots/inline-1280-800.png)
+
+## Installation
+
+### From the Chrome Web Store (Recommended)
+
+[Available in the Chrome Web Store](https://chromewebstore.google.com/detail/azure-devops-pr-syntax-hi/lclohacjbfchomeeopaffkedfnbjicdn)
+
+### Manual Installation
+
+1.  Download or clone this repository.
+2.  Open Google Chrome and navigate to `chrome://extensions`.
+3.  Enable "Developer mode" in the top right corner.
+4.  Click "Load unpacked" and select the directory where you downloaded the repository.
+
+## Usage
+
+Once installed, the extension will automatically apply syntax highlighting to files in any Azure DevOps pull request you view. There are no additional steps required.
+
+## Contributing
+
+Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.
+
+## License
+
+This project is licensed under the MIT License - see the [LICENSE](LICENSE) file for details.

manifest.json

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 {
+  "$schema": "https://json.schemastore.org/chrome-manifest",
   "manifest_version": 3,
   "name": "Azure DevOps PR Syntax Highlighter",
   "version": "0.1.0",
   "description": "Adds syntax highlighting to partial file diffs in Azure DevOps Pull Requests.",
   "icons": {
-    "16": "icons/icon16.png",
-    "32": "icons/icon32.png",
-    "48": "icons/icon48.png",
-    "128": "icons/icon128.png"
+    "16": "assets/icons/icon16.png",
+    "32": "assets/icons/icon32.png",
+    "48": "assets/icons/icon48.png",
+    "128": "assets/icons/icon128.png"
   },
   "host_permissions": [
     "*://*.dev.azure.com/*",