diff --git a/drifter_vs_model b/drifter_vs_model
index 728ba6b..ae42ad0 100644
--- a/drifter_vs_model
+++ b/drifter_vs_model
@@ -7,6 +7,7 @@ and the way we get the model data can choose from('GOM3','massbay','ROMS').
 we can choose add wind or not but if we use drogues drifter we don't need wind
 compare drifter and model track get 2 figure(drifter and model track .distance and time)
 get one file (distance/day and distance/km)
+You can add a link to your flowchart.
 
 @author: Qianran
 """