added extra details for the dropdown

app.py

@@ -71,10 +71,10 @@ iface = gr.Interface(
     inputs=[
         gr.Image(type="pil"),
         gr.ColorPicker(label="Background Color", value=None), # Background color picker
-        gr.Dropdown(choices=["", "u2net (default)", "isnet-general-use", "unet"], label="Model Selection", value=""),
+        gr.Dropdown(choices=["", "u2net (default)| A pre-trained model for general use cases", "isnet-general-use |new pre-trained model for general use cases ", "unet | lightweight version of u2net model"], label="Model Selection", value=""),
         gr.Checkbox(label="Enable Alpha Matting", value=False),
-        gr.Checkbox(label="Post-Process Mask", value=False),
-        gr.Checkbox(label="Only Return Mask", value=False)
+        gr.Checkbox(label="Post-Process Mask (to post process the mask to get better results)", value=False),
+        gr.Checkbox(label="Only Return Mask ", value=False)
     ],
     outputs=[
         gr.Image(type="pil", label="Output Image"),