Update app.py

app.py

@@ -323,10 +323,11 @@ with st.container():
     folium_layermap = folium.Map(location=[custom_lat, custom_lon], zoom_start=12, tiles='Stamen Toner')
 
     # Add grayscale tiles from OpenStreetMap
-    folium.TileLayer('https://tiles.stadiamaps.com/tiles/alidade_smooth/{z}/{x}/{y}{r}.png', 
-                     attr='© Stadia Maps | Tiles courtesy of Stadia Maps',
+    folium.TileLayer('https://tiles.stadiamaps.com/tiles/alidade_smooth/{z}/{x}/{y}{r}.png',
+                     attr='&copy; <a href="https://stadiamaps.com/">Stadia Maps</a>, &copy; <a href="https://openmaptiles.org/">OpenMapTiles</a> &copy; <a href="http://openstreetmap.org">OpenStreetMap</a> contributors',
                      name='grayscale').add_to(folium_layermap)
 
+
     # Add heatmap layers for 'Valor_Urb', 'Valor_Eqp', and 'RENDA'
     add_heatmap_layer(folium_layermap, filtered_data, 'Valor_Urb', 'RdBu_r')
     add_heatmap_layer(folium_layermap, filtered_data, 'Valor_Eqp', 'RdBu_r')