Update what_about_dash.md

Author: LiamConnors

doc/what_about_dash.md

@@ -22,6 +22,6 @@ app.layout = html.Div([
     dcc.Graph(figure=fig)
 ])
 
-app.run_server(debug=True, use_reloader=False)  # Turn off reloader if inside Jupyter
+app.run(debug=True, use_reloader=False)  # Turn off reloader if inside Jupyter
 ```
 <!-- #endregion -->