Update README

README.md

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-# GAMER
-A GPU-accelerated adaptive mesh refinement code for astrophysics
+<h1 align="center">
+🎮🖥️ <a href="">GAMER</a>: A <a href="">G</a>PU-accelerated 🌌👾<br>
+<a href="">A</a>daptive <a href="">ME</a>sh <a href="">R</a>efinement code for astrophysics
+</h1>
+
+[![GitHub Release](https://img.shields.io/github/v/release/gamer-project/gamer)](https://github.com/gamer-project/gamer/releases)
+[![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.15036956.svg)](https://doi.org/10.5281/zenodo.15036956)
+[![License](https://img.shields.io/badge/License-BSD%203--Clause-blue.svg)](https://github.com/gamer-project/gamer?tab=License-1-ov-file)
+[![GitHub contributors](https://img.shields.io/github/contributors/gamer-project/gamer)](https://github.com/gamer-project/gamer/graphs/contributors)
+[![GitHub commit activity](https://img.shields.io/github/commit-activity/m/gamer-project/gamer)](https://github.com/gamer-project/gamer/pulse)
+[![Dynamic JSON Badge](https://img.shields.io/badge/dynamic/json?url=https%3A%2F%2Fapi.crossref.org%2Fworks%2F10.1088%2F0067-0049%2F186%2F2%2F457&query=%24.message.is-referenced-by-count&label=GAMER-1%20Citations)](https://iopscience.iop.org/article/10.1088/0067-0049/186/2/457)
+[![Dynamic JSON Badge](https://img.shields.io/badge/dynamic/json?url=https%3A%2F%2Fapi.crossref.org%2Fworks%2F10.1093%2Fmnras%2Fsty2586&query=%24.message.is-referenced-by-count&label=GAMER-2%20Citations)](https://academic.oup.com/mnras/article/481/4/4815/5106358)
+
+**GAMER** is a **G**PU-accelerated **A**daptive **ME**sh **R**efinement code that features
+high performance, strong parallel scalability, and a wide range of physics modules.
+
+## Getting Started & Documentation
+
+- **Quick Start Guide**: [Quick Start](https://github.com/gamer-project/gamer/wiki/Quick-Start)  
+  A step-by-step guide to quickly set up and run GAMER.
+- **Installation Instructions**: [Installation](https://github.com/gamer-project/gamer/wiki/Installation)  
+  Detailed instructions for installing GAMER on various platforms.
+- **Comprehensive Documentation**: [Wiki](https://github.com/gamer-project/gamer/wiki)  
+  Full documentation covering all aspects of GAMER, including usage, configuration, and advanced features.
+
+## Citation
+
+To cite GAMER in your research, please use the following BibTeX entry to reference the [code paper](https://academic.oup.com/mnras/article/481/4/4815/5106358):
+
+```bibtex
+@article{schive2018gamer,
+  title={GAMER-2: a GPU-accelerated adaptive mesh refinement code--accuracy, performance, and scalability},
+  author={Schive, Hsi-Yu and ZuHone, John A and Goldbaum, Nathan J and Turk, Matthew J and Gaspari, Massimo and Cheng, Chin-Yu},
+  journal={Monthly Notices of the Royal Astronomical Society},
+  volume={481},
+  number={4},
+  pages={4815--4840},
+  year={2018},
+  publisher={Oxford University Press}
+}
+```
 
-Documentation: [wiki](https://github.com/gamer-project/gamer/wiki)