update colab button

app.py

@@ -198,7 +198,7 @@ if __name__ == "__main__":
                     <img src="https://img.shields.io/badge/bioRxiv-2023.11.28.568918-green?style=plastic" alt="Paper" style="display:inline-block; margin-right:10px;">
                 </a>
                 <a href="https://colab.research.google.com/drive/1opud0BVWr76IM8UnGgTomVggui_xC4p0?usp=sharing">
-                    <img src="https://jupyter.org/assets/logos/rectanglelogo-greytext-orangebody-greymoons.svg" alt="JupyterLab" style="display:inline-block; margin-right:10px; width:50px; height:auto;">
+                    <img src="https://colab.research.google.com/assets/colab-badge.svg" alt="Open In Colab" style="display:inline-block; margin-right:10px;">
                 </a>
             </div>
             <div style="text-align:left; margin-bottom:20px; color: black;">