Update app.py

app.py

@@ -9,7 +9,7 @@ sys.path.append(parent_dir)
 
 
 import ee
-# ee.Authenticate()
+# Add Google Service account credential. Authenticates to the Earth Engine servers.
 service_account = 'earthengine@ee-yudingyi054.iam.gserviceaccount.com'
 credentials = ee.ServiceAccountCredentials(service_account, 'ee-yudingyi054-64e93ae89dc1.json')
 
@@ -291,7 +291,7 @@ def server(input, output, session):
         
         # Initialize and display when the session starts (1)
         map = L.Map(center=(current_gps['location']['lat'],  current_gps['location']['lng']), zoom=12, scroll_wheel_zoom=True)
-        map.add_layer(L.TileLayer(url='https://mt1.google.com/vt/lyrs=s&x={x}&y={y}&z={z}'), name='Natural Map')
+        map.add_layer(L.TileLayer(url='https://mt1.google.com/vt/lyrs=s&x={x}&y={y}&z={z}', name='Natural Map'))
         
         # Add a distance scale
         map.add_control(L.leaflet.ScaleControl(position="bottomleft"))