Clean up README: remove emojis

Author: MatrixCQY

README.md

@@ -2,33 +2,33 @@
 
 This repository hosts the source code for the personal academic website of **Qiyang CHENG**.
 
-🔗 **Live Website**: [https://MatrixCQY.github.io](https://MatrixCQY.github.io)
+**Live Website**: [https://MatrixCQY.github.io](https://MatrixCQY.github.io)
 
-## 🚀 Overview
+## Overview
 
 This website is designed for academic purposes, showcasing publications, teaching experience, and research notes. It is built using:
 - [Jekyll](https://jekyllrb.com/) (Static Site Generator)
 - [Minimal Mistakes](https://mmistakes.github.io/minimal-mistakes/) (Theme)
 - [Academic Pages](https://academicpages.github.io/) (Template)
 
-## 🛠️ Maintenance & Editing
+## Maintenance & Editing
 
 If you need to update the content of the website, here are the key locations:
 
-### **Site Configuration**
+### Site Configuration
 - **[_config.yml](_config.yml)**: Main configuration file. Update your name, bio, social links, and site title here.
 - **[_data/navigation.yml](_data/navigation.yml)**: Customize the top navigation bar items.
 
-### **Content Management**
+### Content Management
 - **[_pages/](_pages/)**: Contains the main pages like "About Me" (`about.md`), "CV" (`cv.md`), etc.
 - **[_publications/](_publications/)**: Add or edit your research papers here as individual Markdown files.
 - **[_teaching/](_teaching/)**: List your teaching experience and courses.
 - **[_posts/](_posts/)**: For blog posts or research updates.
 
-### **Profile Image**
+### Profile Image
 - **[images/profile.png](images/profile.png)**: Replace this file to update the sidebar avatar.
 
-## 💻 Local Development
+## Local Development
 
 To run the site locally for testing:
 
@@ -37,5 +37,5 @@ To run the site locally for testing:
 3. Run `bundle exec jekyll serve`.
 4. Open `http://localhost:4000` in your browser.
 
-## 📄 License
+## License
 This project is based on the [Academic Pages](https://github.com/academicpages/academicpages.github.io) template, which is derived from the [Minimal Mistakes](https://github.com/mmistakes/minimal-mistakes) theme, licensed under the MIT License.