H 
		
								
				
				
			
		hurriance
I have a line graph to show the no. of customer in each day.
In the graph, some peak is shown(i.e. the day with many customer).
At each peak, I want to add a label and a line/arrow to show som
information. How can I draw the line
				
			In the graph, some peak is shown(i.e. the day with many customer).
At each peak, I want to add a label and a line/arrow to show som
information. How can I draw the line