docs: remove emojis from README for a more professional look

extension/README.md

@@ -4,15 +4,15 @@
 
 A modern, privacy-first browser extension designed for seamless, distraction-free note-taking directly from your active web pages. Built specifically for integration with the **Memos** backend infrastructure.
 
-## ✨ Core Features
+## Core Features
 
-*   **⚡ Lightning Fast Capture**: Highlight any text on a web page and press `Space` or `Enter` to instantly save it as a note. No context switching required.
-*   **🔗 Smart Source Tracking**: Automatically captures and appends the source URL and page title to your notes.
-*   **🔄 Zero-Click Authentication**: Seamlessly extracts and syncs your `memos.access-token` directly from active Canifa Note/Memos tabs. No secondary login required.
-*   **🎨 Premium UI/UX**: Fully redesigned using the **shadcn/ui** design system, featuring a sleek, dark-first interface with Canifa brand aesthetics.
-*   **🏷️ Intelligent Tagging**: Tag notes on the fly with a smart, autocomplete-enabled chip interface.
+*   **Lightning Fast Capture**: Highlight any text on a web page and press `Space` or `Enter` to instantly save it as a note. No context switching required.
+*   **Smart Source Tracking**: Automatically captures and appends the source URL and page title to your notes.
+*   **Zero-Click Authentication**: Seamlessly extracts and syncs your `memos.access-token` directly from active Canifa Note/Memos tabs. No secondary login required.
+*   **Premium UI/UX**: Fully redesigned using the **shadcn/ui** design system, featuring a sleek, dark-first interface with Canifa brand aesthetics.
+*   **Intelligent Tagging**: Tag notes on the fly with a smart, autocomplete-enabled chip interface.
 
-## 🛠️ Tech Stack
+## Tech Stack
 
 *   **Framework**: React 18
 *   **Build Tool**: Vite (optimized for Chrome Extension V3)
@@ -20,7 +20,7 @@ A modern, privacy-first browser extension designed for seamless, distraction-fre
 *   **Styling**: Vanilla CSS (shadcn/ui token-driven architecture)
 *   **Backend Integration**: Native support for open-source Memos API
 
-## 🚀 Installation & Setup
+## Installation & Setup
 
 ### Prerequisites
 *   Node.js 18+
@@ -52,14 +52,14 @@ A modern, privacy-first browser extension designed for seamless, distraction-fre
 3.  Click **Load unpacked**.
 4.  Select the `dist/` folder that was generated in the build step.
 
-## 🎯 Usage Guide
+## Usage Guide
 
 1.  **Log In to Backend**: Open your Canifa Note (Memos) instance at `http://172.16.2.210:5230/` and log in. The extension will automatically detect your session.
 2.  **Highlight & Save**: On any webpage, highlight a block of text.
 3.  **Shortcut**: Press `Space` or `Enter`. A success notification ("✓ Đã lưu vào Canifa Note") will appear, confirming your note has been saved to the server.
 4.  **Manual Entry**: Click the extension icon in your browser toolbar to open the quick-entry popup.
 
-## 🏗️ Project Structure
+## Project Structure
 
 ```text
 extension/
@@ -74,7 +74,7 @@ extension/
 └── vite.config.ts          # Vite build configuration
 ```
 
-## 🔒 Security
+## Security
 
 *   The extension requests the minimum required permissions (`activeTab`, `storage`, `scripting`).
 *   Tokens are securely extracted locally and transmitted directly to your configured backend.