Update app.py

app.py

@@ -102,6 +102,7 @@ iface = gr.Interface(
     within the document based on the selected distance metric. Choose from cosine, Euclidean, Manhattan, or dot product metrics 
     to explore different aspects of textual similarity.
     umap args: n_neighbors=15, min_dist=0.0,
+    Green dots are the closest vectors
     """
 )