Add some explanations

app.py

@@ -78,9 +78,23 @@ def app_fn(
     return fig_pca
 
 if __name__=="__main__":
-    title = "DINOv2 Features Visualization"
+    title = "🦖 DINOv2 Features Visualization 🦖"
     with gr.Blocks(title=title) as demo:
         gr.Markdown(f"# {title}")
+        gr.Markdown(
+            """
+            ### This app visualizes the features extracted by [DINOv2](https://arxiv.org/pdf/2304.07193.pdf) model. \
+            To create the visualizations we use a 2-step PCA. \
+            The first step we reduce the features to 3 dimensions and then threshold the first component \
+            to segment the background and foreground. Then, we run the second PCA on the foreground features \
+            so we can visualize foreground objects as RGB.
+
+            [Paper](https://arxiv.org/pdf/2304.07193.pdf)
+            [Github](https://github.com/facebookresearch/dinov2)
+
+            Created by: [Eduardo Pacheco](https://github.com/EduardoPach)
+            """
+        )
         with gr.Row():
             threshold = gr.Slider(minimum=0, maximum=1, value=0.6, step=0.05, label="Threshold")
             object_larger_than_bg = gr.Checkbox(label="Object Larger than Background", value=False)