Dashboard Widget drawn before opening HTML tag

Your add_action should call the function that registers the dashboard widget, which then in turn calls the function to render the widget. Right now you have the add_action calling the function to render the widget directly.

change:

add_action( 'wp_dashboard_setup', 'draw_widget' );

to:

add_action( 'wp_dashboard_setup', 'example_add_dashboard_widgets' );