Update app.py

app.py

@@ -2,7 +2,11 @@ from dash import Dash, html, dcc, callback, Output, Input
 
 import dash_bootstrap_components as dbc
 
+APP_TITLE = "Demo App"
 
-
-app = Dash(__name__,suppress_callback_exceptions=True,external_stylesheets=[dbc.themes.FLATLY])
+app = Dash(__name__, 
+           title=APP_TITLE,
+           update_title='Loading...',
+           suppress_callback_exceptions=True,
+           external_stylesheets=[dbc.themes.FLATLY])