diff --git a/README.md b/README.md
index 0ae16f2..a708085 100644
--- a/README.md
+++ b/README.md
@@ -30,9 +30,13 @@ This is a quickstart guide of howto use this *LabInstance*
 ---
 **INFO** 
 
-Lab_Instance = the name you wrote [here](http://docs.swarmlab.io/SwarmLab-HowTos/HowTo-create-lab.adoc.html#_step_3_save_lab_instance)
+*Lab_Instance Name* = The name you give [here](http://docs.swarmlab.io/SwarmLab-HowTos/HowTo-create-lab.adoc.html#_step_3_save_lab_instance)
 
-info [here](http://docs.swarmlab.io/SwarmLab-HowTos/index.adoc.html#_main_lab_intance_interface)
+You can also find [here](http://docs.swarmlab.io/SwarmLab-HowTos/index.adoc.html#_main_lab_intance_interface)
+
+Usage: See examples/PieChart.R 
+
+> e.g. png(file = "/var/www/html/examples_r/piechart.png")
 
 ---
 
diff --git a/examples/PieChart.R b/examples/PieChart.R
index cd0fff9..d1bc3ae 100644
--- a/examples/PieChart.R
+++ b/examples/PieChart.R
@@ -8,6 +8,8 @@ labels = c('breakfast', 'brunch', 'lunch', 'snacks', 'dinner')
 colors = c('#4286f4','#bb3af2','#ed2f52','#efc023','#ea7441')
  
 # Give the chart file a name.
+# Save in Build-in server
+# png(file = "/var/www/html/[Lab_Instance Name]/piechart.png")
 png(file = "/var/www/html/examples_r/piechart.png")
  
 # Plot the chart.