add preamble

app.py

@@ -128,6 +128,10 @@ def predict_subset(model_id, token):
 
 
 with gr.Blocks() as demo:
+    gr.Markdown("""# Arch Image Dataset Explorer 
+    This Gradio Space allows you to explore an image dataset exported from ARCH: Archive Research Compute Hub from the Internet Archive.
+    Each tab allows you to explore the dataset in a slightly different way by making use of Machine Learning models and tools from the Hugging Face ecosystem.
+    """)
     with gr.Tab("Random Image Gallery"):
         gr.Markdown(
         """## Random image gallery